title: New and unproved medical devices.
authors.affiliation: Program on Regulation, Therapeutics, and Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02120, USA.
authors.forename: Aaron S
authors.initials: AS
authors.lastname: Kesselheim
authors.forename: Jerry
authors.initials: J
authors.lastname: Avorn
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D006622:Hip Prosthesis