Whether under the Jones Act's relaxed causation standard, a plaintiff must meet Daubert requirements for scientific causation in toxic tort claims

Whether under 46 U.S.C.A. § 30104 (The Jones Act) relaxed causation standard, requiring only that the employer’s negligence play “any part, even the slightest, i.e. featherweight standard” in producing injury, applies to toxic tort claims involving scientific causation, or whether a plaintiff must meet the height-ened Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579, 113 S.Ct. 2786, 125 L.Ed.2d 469 ( 1993) style requirement for dose response and threshold exposure evidence.