Mealey's (December 19, 2018, 8:52 AM EST) -- BALTIMORE — The Maryland federal judge overseeing the Smith & Nephew BHR metal-on-metal hip multidistrict litigation on Nov. 19 ruled that the claims of plaintiffs who allege fraudulent concealment of the hip’s risks are preempted by federal law (In Re: Smith & Nephew Birmingham Hip Resurfacing Hip Implant Products Liability Litigation, MDL Docket No. 2775, No. 17-md-2775, D. Md., 2018 U.S. Dist. LEXIS 198316)....