Nelson, Lisa D. v. Sandoz Pharmaceutica ( 2002 )


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  • In the
    United States Court of Appeals
    For the Seventh Circuit
    Nos. 00-4062 and 01-1824
    LISA D. NELSON and DAVID A. NELSON,
    Plaintiffs-Appellants,
    v.
    SANDOZ PHARMACEUTICALS CORPORATION,
    Defendant-Appellee.
    Appeals from the United States District Court
    for the Northern District of Indiana, South Bend Division.
    No. 99 C 371--Robert L. Miller, Jr., Judge.
    ARGUED SEPTEMBER 24, 2001--DECIDED April 29, 2002
    Before POSNER, RIPPLE and KANNE, Circuit
    Judges.
    RIPPLE, Circuit Judge. On April 11,
    1990, shortly after the birth of her
    first child, Lisa Nelson, at the age of
    twenty-five, suffered a debilitating
    stroke that impaired the left side of her
    body. At the time of her stroke, Mrs.
    Nelson had a prescription for, and was
    using, the drug Parlodel. Approximately
    five years after suffering the stroke,
    Mrs. Nelson and her husband, David,
    (collectively, "the Nelsons") filed this
    action against Sandoz Pharmaceuticals
    Corporation ("Sandoz")--the manufacturer
    of Parlodel. They alleged that the
    prescription drug had precipitated Mrs.
    Nelson’s stroke. The district court
    entered summary judgment for Sandoz,
    concluding that the Nelsons had failed to
    file their action within the applicable
    statute of limitations period. The
    district court also rejected the Nelsons’
    contention that Sandoz should be
    equitably estopped from asserting the
    statute of limitations as a defense to
    the action because of alleged
    misrepresentations it made to Mrs.
    Nelson’s physician. For the reasons set
    forth in the following opinion, we affirm
    in part and reverse in part the judgment
    of the district court, and we remand this
    case for further proceedings.
    I
    BACKGROUND
    A.   Facts
    At a hospital located in Wabash,
    Indiana, Mrs. Nelson, an Indiana
    resident, gave birth to her first child
    on March 21, 1990. In the days following
    the delivery, a physician prescribed the
    drug Parlodel for Mrs. Nelson. This
    medication is designed to suppress
    lactation in postpartum women. Sandoz
    Pharmaceuticals, a Delaware corporation,
    manufactured Parlodel and marketed the
    product to various individuals, including
    physicians in Indiana.
    On April 5, 1990, Mrs. Nelson began her
    regimen of Parlodel therapy, which
    consisted of a 2.5 milligram dose of the
    medication taken twice a day for fourteen
    consecutive days. Although her
    consumption of the medication coincided
    with the onset of nausea and headaches,
    Mrs. Nelson continued to follow the
    prescription. On approximately the
    seventh day of the Parlodel regimen, Mrs.
    Nelson collapsed; her husband discovered
    her lying unconscious on the floor of
    their home. At a local hospital,
    physicians treated Mrs. Nelson and
    concluded that, at the age of twenty-
    five, she had suffered a severe stroke.
    During Mrs. Nelson’s hospitalization,
    Dr. Matthew Sprunger, a treating
    physician, learned that Mrs. Nelson had
    taken Parlodel and initially suggested a
    possible correlation between the
    medication and his patient’s condition.
    Specifically, in Mrs. Nelson’s progress
    report, Dr. Sprunger noted, "Had been on
    Parlodel for lactation suppression. Some
    case reports in the literature of
    postpartum cardiac and vascular insults
    in [patients] on Parlodel. [Question or
    question of] relationship in this case.
    Will [check] literature."/1 Vol. VI,
    Ex.A. Investigating his theory, Dr.
    Sprunger turned to the Physicians’ Desk
    Reference ("the PDR")--a medical
    reference that provides information
    concerning the uses and side effects of
    numerous prescription drugs. Under its
    entry for Parlodel, the PDR indicated
    that incidents of stroke had been
    reported among individuals who used the
    medication. In particular, the reference
    noted that "[s]erious adverse reactions
    reported include . . . 15 cases of stroke
    . . . . An unremitting and progressively
    severe headache, sometimes accompanied by
    visual disturbance, often preceded by
    hours to days, many cases of seizure
    and/or stroke." Vol. V, R.43, Ex.H.
    However, the PDR, cautioned that "[t]he
    relationship of these adverse reactions
    to Parlodel . . . administration has not
    been established." 
    Id. Dr. Sprunger
    next consulted Elaine
    Thomas, the Sandoz sales representative
    for the Fort Wayne, Indiana area. Dr.
    Sprunger informed Ms. Thomas that he
    sought information from Sandoz concerning
    a possible link between Parlodel and the
    occurrence of strokes in postpartum
    women. During deposition testimony
    regarding her conversation with Dr.
    Sprunger, Ms. Thomas stated:
    Basically, I told him that we were aware
    of some episodes of stroke but that they
    occurred more frequently in the
    postpartum population than in the normal
    population anyhow, and it was my
    understanding that they didn’t occur any
    more frequently with patients treated
    with Parlodel than they did in the
    postpartum population.
    Vol. VI, Ex.E, at 26. Although Ms. Thomas
    provided Dr. Sprunger with literature
    relating to this topic, neither
    individual recalls the article’s author,
    title or precise contents.
    After conducting this investigation, Dr.
    Sprunger concluded that a connection did
    not exist between Mrs. Nelson’s stroke
    and Parlodel, and he relayed this
    determination to Mrs. Nelson’s family
    practitioner. In Mrs. Nelson’s progress
    report, Dr. Sprunger wrote: "Obstetrics,
    see information on front of chart re:
    Parlodel and strokes. As per Sandoz
    information, negative correlation of
    Parlodel and stroke. Will sign off." Vol.
    VI, Ex.A. (emphasis in original). During
    deposition testimony, Mr. Nelson
    indicated that Dr. Sprunger also relayed
    these findings to him.
    The Nelsons also relate that they asked
    a second physician, Mrs. Nelson’s
    neurologist, if Parlodel induced the
    stroke. According to the Nelsons, the
    neurologist brushed aside this theory.
    Soon after, Mrs. Nelson’s physicians dis
    charged her from the hospital, and she
    returned home.
    In October 1992, Mrs. Nelson gave birth
    to her second child. After the delivery,
    Mrs. Nelson informed her nurse that she
    would not take Parlodel. In particular,
    on Mrs. Nelson’s chart, the nurse wrote
    "states had ’stroke’ 3 [weeks] past due
    last [pregnancy]. States won’t take
    Parlodel." Vol. V, R.43, Ex.J. (emphasis
    in original). Also in 1992, the Nelsons
    contacted an attorney and inquired
    whether Mrs. Nelson’s family practitioner
    bore some responsibility for her earlier
    stroke. The attorney informed them that
    they lacked adequate information to
    proceed with a case against this
    physician.
    Two years later, in August 1994, an
    investigative news program aired by the
    National Broadcasting Company ("NBC")
    concerning the incidence of stroke among
    postpartum women who had taken Parlodel.
    Mrs. Nelson viewed this program. Later
    that year, the FDA issued a notice of its
    intent to withdraw its approval for the
    use of Parlodel in the treatment of
    postpartum lactation.
    B.   District Court Proceedings
    1.
    On December 26, 1995, invoking the
    diversity jurisdiction of the district
    court,/2 the Nelsons filed this
    products liability action against Sandoz
    in the United States District Court for
    the District of New Jersey, alleging that
    Parlodel had induced Mrs. Nelson’s
    stroke./3 Faced with a flurry of
    similar cases, the district court, for
    purposes of discovery, consolidated the
    Nelsons’ action with those of other
    Parlodel plaintiffs. When this phase of
    the litigation had concluded, the
    Parlodel plaintiffs moved to continue the
    consolidation of their cases for the
    purpose of trial; the district court,
    however, denied the motion. In response
    to this ruling, Sandoz moved, pursuant to
    28 U.S.C. sec. 1404(a), to transfer each
    of the actions to the home district of
    the specific plaintiff who had filed the
    claim. The district court granted the
    motion, eventually resulting in the
    transfer of the Nelsons’ case to the
    United States District Court for the
    Northern District of Indiana./4
    Once before the district court, Sandoz
    moved for summary judgment, alleging that
    the Nelsons had failed to file their
    claims within the applicable statute of
    limitations period./5 As a threshold
    matter, Sandoz submitted that Indiana,
    rather than New Jersey, substantive law
    governed the litigation. Proceeding on
    this theory, the pharmaceutical company
    argued that, under Indiana law, the
    Nelsons’ cause of action accrued in April
    1990--the date of Mrs. Nelson’s stroke.
    According to Sandoz, to have filed a
    timely claim, the Nelsons should have
    instituted any action relating to the
    stroke by April 1992--the date Indiana’s
    two-year statute of limitations period
    for product liability suits would have
    expired on these claims. Although
    conceding that Indiana recognized the
    discovery rule,/6 Sandoz submitted that
    the Indiana courts applied the doctrine
    sparingly and would not permit its
    invocation in this case. Sandoz further
    argued that, even if the discovery rule
    applied, the Nelsons should have known of
    their claims against the pharmaceutical
    corporation as early as 1992.
    In response, although the Nelsons
    continued to urge the application of New
    Jersey substantive law to their claims,
    they also submitted that, under either
    New Jersey or Indiana law, they had
    instituted their suit in a timely manner.
    Submitting that either state would apply
    the discovery rule to their case, the
    Nelsons argued that, under this doctrine,
    their cause of action accrued on the date
    of the NBC telecast. The Nelsons
    submitted that, having learned of their
    claims only in 1994, they filed this
    action well within both states’ two-year
    statute of limitations periods for
    product liability suits. In the
    alternative, the Nelsons submitted that,
    based on Sandoz’ purported efforts to
    conceal the link between its medication
    and strokes, the pharmaceutical company
    should be equitably estopped from
    asserting the statute of limitations
    defense.
    2.
    After considering the parties’
    positions, the district court entered
    summary judgment for Sandoz. The court
    concluded that the Nelsons failed to file
    their action within the applicable
    statute of limitations period. The
    district court first acknowledged that,
    because this case had been transferred
    from the District of New Jersey, that
    state’s choice-of-law rules determined
    the law, including the applicable statute
    of limitations, that ought govern the
    litigation. The district court therefore
    applied New Jersey’s government interest
    analysis approach to choice-of-law
    matters to this case. According to the
    district court, with respect to the
    discovery rule, a conflict existed
    between Indiana and New Jersey law.
    Indiana limited the doctrine to a
    discrete range of actions in which a
    "’foreign substance was introduced into
    the plaintiff’s body long before any
    injury or resultant disease became manifest.’"
    Mem. Op. at 7 (quoting Covalt v. Carey-
    Canada, Inc., 
    543 N.E.2d 382
    , 384 (Ind.
    1989)). New Jersey, by contrast, allowed
    plaintiffs to invoke the discovery rule
    in all tort cases. Having determined that
    Indiana and New Jersey had different
    discovery rules, the district court,
    relying on New Jersey choice-of-law
    methodology, set about determining which
    state had an interest in the application
    of its own law. It noted that Mrs. Nelson
    was injured in Indiana, the state in
    which the Parlodel had been prescribed
    and ingested. The drug had been
    manufactured in New Jersey, the
    headquarters of Sandoz. Turning to the
    governmental policies of each state, the
    district court then concluded that the
    purpose of Indiana’s statute of
    limitations was to "place a temporal
    limit upon liability for a product’s
    defects." Mem. Op. at 8 (quoting Johnson
    v. Kemper Indus., Inc., 
    677 N.E.2d 531
    ,
    536 (Ind. Ct. App. 1997)). By contrast,
    continued the court, New Jersey’s
    approach, embodied in its broader
    discovery rule, "’is to avoid harsh
    results that otherwise would flow from
    mechanical application of a statute of limitations.’"
    Mem. Op. at 8 (quoting Mancuso v.
    Neckles, 
    747 A.2d 255
    , 256 (N.J. 2000)).
    This more general rule was designed to
    prevent unfairness to plaintiffs who
    might otherwise be time-barred without
    ever learning that they had a cause of
    action. Noting that Sandoz’ corporate
    presence in New Jersey was the only
    relevant contact that the state had with
    the case, the district court determined
    that this contact with New Jersey was
    insufficient to give the state an
    interest in the application of its own
    law. The state’s contact with the
    litigation was simply unrelated to the
    policies of its law. Sandoz’ presence in
    the state has nothing to do, concluded
    the court, with the purpose of New
    Jersey’s discovery rule which is aimed at
    providing a plaintiff with additional
    protection from unfairness. The district
    court concluded that Indiana’s statute of
    limitations applied to the Nelsons’
    claims.
    Relying on its narrow interpretation of
    the Indiana discovery rule, the district
    court then concluded that the Nelsons’
    action did not fall within the narrow
    spectrum of cases in which the Indiana
    discovery rule applied. According to the
    district court, the Nelsons’ cause of
    action accrued when Mrs. Nelson suffered
    her injury--1990. Because the statute of
    limitations expired in 1992, the Nelsons’
    claims were time-barred. In addition, the
    district court rejected the Nelsons’
    contention that Sandoz should be
    equitably estopped from asserting the
    statute of limitations as a defense to
    their action. In this regard, the
    district court concluded that the Nelsons
    had failed to present evidence that
    Sandoz had concealed intentionally
    information that was necessary for the
    Nelsons to bring their claims in a timely
    fashion.
    II
    DISCUSSION
    We review de novo the district court’s
    grant of summary judgment. See Thomas v.
    Pearle Vision, Inc., 
    251 F.3d 1132
    , 1136
    (7th Cir. 2001). Summary judgment is
    appropriate "if the pleadings,
    depositions, answers to interrogatories,
    and admissions on file, together with
    affidavits, if any, show that there is no
    genuine issue as to any material fact and
    that the moving party is entitled to a
    judgment as a matter of law." Fed. R.
    Civ. P. 56(c); see Celotex Corp. v.
    Catrett, 
    477 U.S. 317
    , 322-23 (1986). Our
    function is not to weigh the evidence but
    merely to determine if "there is a
    genuine issue for trial." Anderson v.
    Liberty Lobby, Inc., 
    477 U.S. 242
    , 249
    (1986). In performing this task, we must
    construe all facts and draw all
    reasonable inferences in the light most
    favorable to the nonmoving party. See 
    id. at 255.
    A.   Choice of Law
    As a threshold matter, we must resolve
    the choice-of-law issue in this case--
    whether Indiana’s or New Jersey’s statute
    of limitations and accompanying discovery
    rule govern the Nelsons’ claims. The
    Nelsons contend that, in conducting its
    choice-of-law analysis, the district
    court construed too narrowly the ambit of
    the Indiana discovery rule, thereby
    tainting its choice-of-law analysis and
    leading to the erroneous application of
    Indiana substantive law to their claims.
    Although conceding that a
    misinterpretation of the Indiana
    discovery rule occurred, Sandoz contends
    that the district court nevertheless
    concluded correctly that Indiana law
    applies to the Nelsons’ claims.
    To resolve this question, we turn to New
    Jersey’s choice-of-law principles./7 In
    adjudicating choice-of-law issues, New
    Jersey employs a two-part governmental
    interest test that "seeks to apply the
    law of the state with the greatest
    interests in governing the specific issue
    in the underlying litigation." Fu v. Fu,
    
    733 A.2d 1133
    , 1138 (N.J. 1999). Under
    this approach, we first must assess
    whether an actual conflict exists between
    the competing state laws--"a
    determination that is made on an issue-
    by-issue basis." Gantes v. Kason Corp.,
    
    679 A.2d 106
    , 109 (N.J. 1996). If the
    difference between the state laws is
    illusory and no conflict exists, our
    inquiry ends and we apply the law of the
    forum state. However, if an actual
    conflict exists, we must move to the
    second step of the analysis and "identify
    the governmental policies underlying the
    law of each state and how those policies
    are affected by each state’s contacts to
    the litigation and to the parties."
    
    Gantes, 679 A.2d at 109
    . After conducting
    this inquiry, the court applies to the
    claims before it the substantive law of
    the state with greatest interest in the
    litigation.
    1.
    Employing the methodology set forth in
    the New Jersey cases, we first must
    determine whether an actual conflict
    exists between the statutes of
    limitations and accompanying discovery
    rules of New Jersey and Indiana. As both
    parties acknowledge, Indiana and New
    Jersey have identical two-year statutes
    of limitations for product liability
    suits. The crucial inquiry, then, is
    whether the states’ discovery rules
    diverge, thereby creating an actual
    conflict-of-law.
    In many respects, the Indiana and New
    Jersey discovery rules bear a striking
    similarity to each other. Certainly, the
    basic verbal formulations are very
    similar. Under Indiana law, the discovery
    rule provides that the statute of limita
    tions begins to run on a cause of action
    when "the plaintiff knew or, in the
    exercise of ordinary diligence, could
    have discovered that an injury had been
    sustained as a result of the tortious act
    of another." Horn v. A.O. Smith Corp., 
    50 F.3d 1365
    , 1369 (7th Cir. 1995); Wehling
    v. Citizens Nat’l Bank, 
    586 N.E.2d 840
    ,
    843 (Ind. 1992); Doe v. United Methodist
    Church, 
    673 N.E.2d 839
    , 844 (Ind. Ct.
    App. 1996). Differing little in terms of
    phraseology from its Indiana counterpart,
    the New Jersey discovery rule states that
    "a cause of action will be held not to
    accrue until the injured party discovers,
    or by the exercise of reasonable
    diligence and intelligence should have
    discovered that he may have a basis for
    an actionable claim." Martinez v. Cooper
    Hosp.-Univ. Med. Ctr., 
    747 A.2d 266
    , 270
    (N.J. 2000) (quoting Lopez v. Swyer, 
    300 A.2d 563
    , 565 (N.J. 1973)). Moreover,
    neither state constrains application of
    its discovery rule to a limited spectrum
    of cases; rather, a plaintiff may invoke
    the rule in numerous types of tort
    actions. Compare Wehling v. Citizens
    Nat’l Bank, 
    586 N.E.2d 840
    , 843 (Ind.
    1992) (recognizing that Indiana discovery
    rule applies to all tort claims), with
    County of Morris v. Fauver, 
    707 A.2d 958
    ,
    972 (N.J. 1998) (listing spectrum of
    cases in which discovery rule is
    available). Although the precise events
    that trigger the statute of limitations
    for discovery rule purposes will vary
    from case to case, both states have
    developed similar principles that guide
    this fact-intensive inquiry. For
    instance, as a general rule, neither
    state requires a plaintiff to know, to a
    medical or legal certainty, the cause of
    his injuries before his cause of action
    will accrue under the discovery
    rule.Compare Evenson v. Osmose Wood
    Preserving Co. of Am., Inc., 
    899 F.2d 701
    , 705 (7th Cir. 1990) ("Events short
    of a doctor’s diagnosis can provide a
    plaintiff with evidence of a reasonable
    possibility that another’s act or product
    caused his injuries.") with Lapka v.
    Porter Hayden Co., 
    745 A.2d 525
    , 530
    (N.J. 2000) ("We impute discovery if the
    plaintiff is aware of facts that would
    alert a reasonable person to the
    possibility of an actionable claim;
    medical or legal certainty is not
    required.").
    However, despite these similarities, we
    may not ignore one pertinent difference
    between the states’ discovery rules. The
    New Jersey courts consider the discovery
    doctrine "at its root . . . a rule of
    equity." 
    Lapka, 525 A.2d at 532
    . More
    precisely, the New Jersey courts do not
    limit their inquiry merely to assessing
    whether a party knew or should have known
    of his cause of action. Rather, the
    equitable underpinnings of the discovery
    rule mandate that the court "consider
    elements of fairness pertaining to all
    parties, not just to those asserting the
    benefit of the [discovery] rule." 
    Id. In essence,
    New Jersey courts engage in a
    balancing test that seeks to identify,
    evaluate and weigh the equitable claims
    of the opposing parties./8 See Lopez v.
    Swyer, 
    300 A.2d 563
    , 567 (N.J. 1973).
    Simply put, under New Jersey law, if
    invocation of the discovery rule would
    produce an inequity, such as prejudicing
    the defendant’s ability to defend the
    claim, a plaintiff may not receive the
    benefit of the doctrine./9 See, e.g.,
    Mancuso v. Neckles, 
    747 A.2d 255
    , 262
    (N.J. 2000) (considering whether
    defendant would be prejudiced by
    application of the discovery rule).
    On the basis of our study of the case
    law of both jurisdictions, we must
    conclude that an actual conflict exists
    between New Jersey and Indiana law; the
    two states employ different analytical
    approaches to the application of the
    discovery rule. Before permitting a
    plaintiff to invoke the discovery rule,
    New Jersey relies on what it terms
    equitable principles to assess the
    prejudice a defendant may incur in
    defending against a stale claim. New
    Jersey’s use of these equitable
    considerations differentiates its
    discovery rule from that of Indiana.
    Although we acknowledge that the
    divergence between the two rules is
    subtle, it is sufficiently significant to
    be characterized for choice-of-law
    purposes as an actual conflict.
    2.
    Confronted with an actual conflict
    between state laws, New Jersey choice-of-
    law methodology requires that we now
    consider each state’s interest in
    enforcement of its rule. See 
    Gantes, 679 A.2d at 109
    . In performing this task, we
    must "identify the governmental policies
    underlying the law of each state and how
    those policies are affected by each
    state’s contacts to the litigation and to
    the parties." Veazey v. Doremus, 
    510 A.2d 1187
    , 1189 (N.J. 1986). The law of the
    state with the greatest interest in the
    litigation will control.
    Focusing solely on the issue before us,
    we conclude that, in this instance, New
    Jersey would apply the Indiana discovery
    rule to the Nelsons’ claims. The policies
    underlying the Indiana discovery rule
    closely align with that state’s contact
    to, and interest in, the litigation and
    the parties. Specifically, the Indiana
    discovery rule "is based on the reasoning
    that it is inconsistent with our system
    of jurisprudence to require a claimant to
    bring his cause of action in a limited
    period in which, even with due diligence,
    he could not be aware a cause of action
    exists." UNR-Rohn, Inc. v. Summit Bank of
    Clinton County, 
    687 N.E.2d 235
    , 240 (Ind.
    Ct. App. 1997) (quoting Barnes v. A.H.
    Robins Co., Inc., 
    476 N.E.2d 84
    , 86 (Ind.
    1985)). Because the rule seeks to
    insulate Indiana citizens from the harsh
    effects of mechanical application of the
    statute of limitations, Indiana possesses
    a significant interest in enforcing its
    discovery rule to its own citizens,
    including the Nelsons. Moreover, the drug
    that allegedly caused the injury was
    administered and consumed within Indiana
    borders, providing the state with another
    significant stake in this litigation. Cf.
    Henry v. Richardson-Merrell, Inc., 
    508 F.2d 28
    , 38 (3d Cir. 1975). We are
    mindful that New Jersey’s interest in
    this case is far from negligible. New
    Jersey holds an interest in deterring
    tortious conduct of entities such as
    Sandoz that operate principally within
    the state’s borders. See, e.g., 
    Gantes, 679 A.2d at 115
    . However, as its state
    courts note, the "linchpin of the [New
    Jersey] discovery rule is the unfairness
    of barring claims of unknowing parties."
    Caravaggio v. D’Agostini, 
    765 A.2d 182
    ,
    186 (N.J. 2001). The policy underlying
    the New Jersey discovery rule does not
    align precisely with that state’s
    interests in this litigation.
    Accordingly, we conclude that Indiana
    law--its statute of limitations and
    accompanying discovery rule--applies to
    the Nelsons’ claims./10
    B.
    Having concluded that the Indiana
    discovery rule applies to this case, we
    must assess whether the Nelsons filed
    their claim within the applicable statute
    of limitations period.
    As we previously noted, Indiana requires
    a plaintiff to commence her product
    liability suit "within two years after
    the cause of action accrues." Ind. Code
    sec. 33-1-1.5-5 (recodified at Ind. Code
    sec. 34-20-3-1). However, recognizing
    ambiguity in the meaning of "accrues,"
    Indiana courts have provided substance to
    this word through application of the
    discovery rule. See Degussa Corp. v.
    Mullens, 
    744 N.E.2d 407
    , 410 (Ind. 2001).
    Under Indiana law, the statute of
    limitations "begins to run from the date
    that the plaintiff knew or should have
    discovered that she suffered an injury or
    impingement, and that it was caused by
    the product or act of another."/11
    Degussa 
    Corp., 744 N.E.2d at 410
    .
    As the Indiana courts recognize, the
    date upon which a plaintiff "discovered
    facts which, in the exercise of ordinary
    diligence, should lead to the discovery
    of [causation] and resulting injury, is
    often a question of fact." Van Dusen v.
    Stotts, 
    712 N.E.2d 491
    , 499 (Ind. 1999).
    Generally, though, the plaintiff’s
    suspicion, standing alone, about the
    source of her injury is insufficient to
    trigger the onset of the limitations
    period. See 
    Evenson, 899 F.2d at 705
    ; Van
    
    Dusen, 712 N.E.2d at 499
    . In contrast,
    the limitations period will begin to run
    when a physician suggests there is a
    "reasonable possibility, if not a
    probability" that a specific product
    caused the plaintiff’s injury. Degussa
    
    Corp., 744 N.E.2d at 411
    ; Van 
    Dusen, 712 N.E.2d at 499
    . In this latter case, a
    reasonable individual, exercising
    ordinary diligence, would pursue the lead
    and procure "additional medical or legal
    advice needed to resolve any remaining
    uncertainty or confusion regarding the
    cause of his or her injuries." Degussa
    
    Corp., 744 N.E.2d at 411
    . The Indiana
    courts have cautioned that "’events short
    of a doctor’s diagnosis can provide a
    plaintiff with evidence of a reasonable
    possibility’ that another’s product
    caused his or her injuries." 
    Id. at 411
    (quoting 
    Evenson, 899 F.2d at 705
    ).
    We conclude that, based on the record
    before us, the district court
    inappropriately entered summary judgment
    for Sandoz based on the statute of
    limitations defense. Although the Nelsons
    had the burden of establishing, in
    replying to Sandoz’ motion for summary
    judgment, that the discovery rule ought
    to apply, they certainly have
    demonstrated that Sandoz cannot prevail
    on its motion for summary judgment.
    Foremost, Sandoz is incorrect when it
    states that, aside from a single
    discussion with the neurologist, the
    Nelsons failed to identify a conversation
    in which a physician dismissed "the
    possibility that Parlodel caused her
    stroke." Appellee’s Br. at 10 n.2.
    Although Dr. Sprunger initially suggested
    a possible link between the drug and
    strokes, he no longer held this tentative
    view after further inquiry. Indeed, he
    stated in Mrs. Nelson’s medical records
    that "[a]s per Sandoz information,
    negative correlation of Parlodel and
    stroke. Will sign off." Vol. VI, Ex.A
    (emphasis in original). According to
    deposition testimony adduced during
    discovery, Dr. Sprunger relayed these
    findings to the Nelsons. In particular,
    Mr. Nelson testified that: "Lisa talked
    to [Dr.] Sprunger and he said there may
    be a connection to the drug. And then he-
    -he said there wasn’t--when we left,
    there was no--they didn’t know what it
    was. They had brushed that off, so we
    didn’t think anything else about it."
    Vol. VI, Ex.D, at 165. According to the
    Nelsons, when they asked a second
    physician, the neurologist, about a
    possible link between the drug and Mrs.
    Nelson’s injuries, he "shoved it off to
    the side like [there was] no connection
    whatsoever." Vol. VI, Ex.D, at 157. The
    neurologist indicated that "he didn’t
    know [the cause] for sure and he said
    we’ll maybe never know for sure." Vol.
    VI, Ex.D, at 165. Moreover, as we noted
    earlier, based on information from Sandoz
    and the PDR, Dr. Sprunger stated in Mrs.
    Nelson’s medical file: "negative
    correlation of Parlodel and stroke." Vol.
    VI, Ex.A (emphasis in original). Although
    Sandoz suggests that the Nelsons should
    have heeded an earlier note from Dr.
    Sprunger in Mrs. Nelson’s medical records
    suggesting a link between the drug and
    strokes, it simply ignores Dr. Sprunger’s
    later entry disavowing this causation
    theory. Indeed, Sandoz has failed to
    proffer any reason why this later entry
    in the medical file would not have been
    available to the Nelsons.
    Beyond the PDR entry for Parlodel and
    Sandoz’ erroneous construction of the
    record, Sandoz makes no other serious
    effort to demonstrate that the Nelsons
    were alerted to a reasonable possibility
    or probability that Parlodel may have
    induced Mrs. Nelson’s stroke and thus
    triggered the statute of limitations
    period prior to 1994. Sandoz does submit
    that Mrs. Nelson’s refusal to take
    Parlodel in 1992 indicates that she knew
    or should have known of her potential
    cause of action against Sandoz at that
    time. In making medical choices, however,
    an individual is free to act on mere
    suspicion or excessive caution;
    suspicions and hunches do not constitute
    knowledge concerning causality of injury.
    See Degussa 
    Corp., 744 N.E.2d at 411
    .
    C.
    Finally, we turn to the Nelsons’
    contention that, under the doctrine of
    fraudulent concealment, Sandoz should be
    equitably estopped from asserting the
    statute of limitations defense in this
    action. More precisely, the Nelsons
    contend that Sandoz, through its sales
    representative Ms. Thomas, provided Dr.
    Sprunger with false and misleading
    information designed to forestall their
    investigation into a possible link
    between Parlodel and seizures. The
    district court rejected this position,
    concluding that the record contained
    insufficient information to support the
    allegation of fraudulent concealment. We
    agree.
    Under the doctrine of fraudulent
    concealment, a defendant is equitably
    estopped from asserting the statute of
    limitations defense when, through
    deception, that party has "concealed from
    the plaintiff material facts thereby pre
    venting the plaintiff from discovering a
    potential cause of action." Fager v.
    Hundt, 
    610 N.E.2d 246
    , 251 (Ind. 1993).
    To invoke the doctrine, the plaintiff
    must demonstrate that "the wrongdoer was
    not simply silent but committed
    affirmative acts designed to conceal the
    cause of action." 
    Horn, 50 F.3d at 1372
    (citations to Indiana law omitted). The
    affirmative acts must generally rise to
    the level of some "trick or contrivance
    intended by the defrauder to exclude
    suspicion and prevent inquiry." Ludwig v.
    Ford Motor Co., 
    510 N.E.2d 691
    , 697 (Ind.
    App. Ct. 1987). Moreover, the plaintiff
    must have reasonably relied on the
    deceptive statements. See Doe v. United
    Methodist Church, 
    673 N.E.2d 839
    , 845
    (Ind. Ct. App. 1996).
    During deposition testimony, Dr.
    Sprunger stated that he based his
    conclusion concerning the lack of a link
    between Parlodel and strokes on "the PDR,
    and there was an article that was
    provided to me by the Sandoz rep here in
    Fort Wayne." Vol. VI, Ex.B, at 9. Neither
    Dr. Sprunger nor Ms. Thomas, the Sandoz
    sales representative, is able to recall
    the article’s author, contents or title.
    Absent this information, it would be
    impossible for a juror to conclude that
    the document contained information
    designed to mislead intentionally Dr.
    Sprunger and ultimately the Nelsons.
    Although the Nelsons have contended at
    various times in this litigation that the
    article could be identified by a process
    of elimination, a claim of fraudulent
    concealment may not rest on such
    speculative grounds.
    In addition, the Nelsons posit that Ms.
    Thomas, in her conversation with Dr.
    Sprunger, made statements designed to
    mislead the physician. In particular, Ms.
    Thomas stated that:
    Basically, I told [Dr. Sprunger] that we
    were aware of some episodes of stroke but
    that they occurred more frequently in the
    postpartum population than in the normal
    population anyhow, and it was my
    understanding that they didn’t occur any
    more frequently with patients treated
    with Parlodel than they did in the
    postpartum population.
    Vol. VI, Ex.E, at 26. The Nelsons contend
    that an internal memorandum from Sandoz
    demonstrates the falsity of this
    assertion. In particular, the memorandum
    provides that "at this time, [1993,] we
    have no hard data to demonstrate that
    there is not an increased risk of stroke
    . . . in Parlodel users." Vol. VII,
    Ex.821, at 5. Put in other terms, the
    document simply indicates that the
    company cannot state definitively whether
    a link exists between its product and
    seizures. This statement does not render
    Ms. Thomas’ assertions false or
    deceptive. Accordingly, the district
    court properly entered summary judgment
    on this portion of the Nelsons’ claims.
    Conclusion
    Indiana’s statute of limitations and
    discovery rule govern the Nelsons’
    claims. We, however, conclude that the
    district court inappropriately entered
    summary judgment for Sandoz based on the
    statute of limitations defense. We agree
    with the district court that summary
    judgment remains appropriate on the
    Nelsons’ claim of fraudulent concealment.
    Accordingly, the judgment of the district
    court is affirmed in part, reversed in
    part and the case is remanded for further
    proceedings. The Nelsons may recover the
    costs of this appeal.
    AFFIRMED IN PART
    REVERSED IN PART AND REMANDED
    FOOTNOTES
    /1 Dr. Sprunger now can neither recall nor locate
    through research the medical literature that he
    referenced in this note.
    /2 The Nelsons are citizens of the state of Indiana.
    Sandoz is a Delaware Corporation with its princi-
    ple place of business in New Jersey. The amount
    in controversy in this action exceeds $75,000.
    /3 Among the various counts of her complaint, Mrs.
    Nelson alleged theories of strict liability,
    negligence, breach of implied and express warran-
    ties, fraud, fraud by concealment, negligent mis-
    representation, civil conspiracy and concert of
    action. In addition, Mr. Nelson alleged loss of
    consortium.
    /4 The Nelsons’ case was transferred initially,
    albeit erroneously, to an improper venue--the
    United States District Court for the Southern
    District of Indiana. The error was corrected, and
    the case was moved to the appropriate district
    court.
    /5 Before Sandoz filed for summary judgment, Mrs.
    Nelson stipulated to the dismissal with prejudice
    of the counts of breach of implied and express
    warranties, civil conspiracy and concert of
    action that she had alleged against Sandoz.
    /6 In general terms, the discovery rule states that
    a cause of action accrues for purposes of the
    statute of limitations only when the plaintiff
    knew or reasonably should have known of his
    injury and its cause.
    /7 Under Klaxon Co. v. Stentor Electric Manufactur-
    ing Co., 
    313 U.S. 487
    , 496-97 (1941), a federal
    court sitting in diversity applies the choice-of-
    law principles of the state in which it sits. The
    Nelsons originally filed this diversity action in
    the United States District Court for the District
    of New Jersey. Under Klaxon, the federal district
    court in New Jersey would have applied New Jersey
    choice-of-law principles to resolve the apparent
    conflict between New Jersey and Indiana substan-
    tive law. The transfer of the Nelsons’ case from
    this initial forum to the United States District
    Court for the Northern District of Indiana did
    nothing to alter the applicability of New Jer-
    sey’s choice-of-law principles to this matter.
    When a case is transferred from one federal
    district court to another pursuant to 28 U.S.C.
    sec. 1404, the choice-of-law principles of the
    state in which the original district court sits--
    in this case New Jersey--govern the case. See
    Ferens v. John Deere Co., 
    494 U.S. 516
    (1990);
    Van Dusen v. Barrack, 
    376 U.S. 612
    (1964); see
    also Eckstein v. Balcor Film Investors, 
    8 F.3d 1121
    , 1126 (7th Cir. 1993). As such, we must
    apply New Jersey’s choice-of-law rules to deter-
    mine whether New Jersey or Indiana substantive
    law governs the Nelsons’ claims.
    /8 The factors that may be considered include, but
    are not limited to:
    the nature of the alleged injury, the availabili-
    ty of witnesses and written evidence, the length
    of time that has elapsed since the alleged wrong-
    doing, whether the delay has been to any extent
    deliberate or intentional, whether the delay may
    be said to have peculiarly or unusually preju-
    diced the defendant.
    Lopez v. Swyer, 
    300 A.2d 563
    , 568 (N.J. 1973).
    /9 We note one additional indicium of the equitable
    component of the New Jersey discovery rule.
    Specifically, the New Jersey Supreme Court has
    stated: "It is true that the time of discovery is
    a question of fact, and so could be left to a
    jury. . . . The decision requires more than a
    simple factual determination; it should be made
    by a judge and by a judge conscious of the
    equitable nature of the issue before him." Lopez
    v. Swyer, 
    300 A.2d 563
    , 567 (N.J. 1973). Thus,
    New Jersey delegates the discovery rule determi-
    nation solely to a judge based largely on the
    doctrine’s equitable nature. In contrast, Indiana
    courts recognize that when application of the
    statute of limitations rests upon questions of
    fact, any factual dispute must be resolved by a
    jury. See Fager v. Hundt, 
    610 N.E.2d 246
    , 253 n.5
    (Ind. 1993); Wehling v. Citizens Nat’l Bank, 
    586 N.E.2d 840
    , 843 (Ind. 1992); Doe v. United Meth-
    odist Church, 
    673 N.E.2d 839
    , 841 (Ind. Ct. App.
    1996).
    /10 Even if we are incorrect in our analysis of
    either prong of our New Jersey choice-of-law
    analysis, we believe that, ultimately, the appli-
    cation of New Jersey law to this proceeding would
    have rendered the same result as that of Indiana
    law. Although New Jersey courts factor equitable
    considerations in discovery rule cases, this
    inquiry is limited largely to assessing whether
    the plaintiff’s delay in filing the case has
    prejudiced the defendant’s ability to defend
    against the claim. See, e.g., 
    Mancuso, 747 A.2d at 262
    (considering whether defendant would be
    prejudiced by application of the discovery rule);
    
    Martinez, 747 A.2d at 273
    (noting that hospital
    had not raised contention that application of
    discovery rule would prejudice its case). In this
    case, Sandoz has not alleged that it would be
    prejudiced unfairly in its ability to defend
    against the Nelsons’ claims should we permit them
    to invoke the discovery rule.
    /11 Sandoz submits that the Nelsons must demonstrate
    that they conducted a diligent inquiry in order
    to obtain the benefit of the discovery rule. See
    Appellee’s Br. at 9. In support of this proposi-
    tion, Sandoz relies on Autocephalous Greek-Ortho-
    dox Church of Cyprus v. Goldberg & Feldman Fine
    Arts, Inc., 
    917 F.2d 278
    , 288 (7th Cir. 1990),
    which states that "[c]entral to both the discov-
    ery rule and the doctrine of fraudulent conceal-
    ment is the determination of the plaintiff’s
    diligence in investigating the potential cause of
    action." We believe that Sandoz construes Auto-
    cephalous too broadly. Diligence does play a role
    in the Indiana discovery rule but not to the
    extent intimated by Sandoz. As the Indiana courts
    have made clear in cases following Autocephalous,
    when determining the applicability of the discov-
    ery rule, they will consider what the plaintiff
    should have uncovered in the exercise of ordinary
    diligence. See, e.g., Degussa 
    Corp., 744 N.E.2d at 410
    -11 ("The question of when a plaintiff
    alleging medical malpractice discovered facts
    which, in the exercise of reasonable diligence,
    should lead to the discovery of the medical
    malpractice and resulting injury, is often a
    question of fact.") (emphasis added); Van Dusen
    v. Stotts, 
    712 N.E.2d 491
    , 499 (Ind. 1999)
    (same); Doe v. United Methodist Church, 
    673 N.E.2d 839
    , 844 (Ind. Ct. App. 1996) ("[A] cause
    of action accrues, and the statute of limitations
    begins to run, when the plaintiff knew or, in the
    exercise of ordinary diligence, could have dis-
    covered that an injury had been sustained as a
    result of the tortious act of another.") (empha-
    sis added). This is the role diligence plays in
    Indiana discovery rule cases.