title: Expression of Concern: Kiel et al. Efficacy of a hip protector to prevent hip fracture in nursing home residents: the HIP PRO randomized controlled trial. JAMA. 2007;298(4):413-422.
authors.forename: Howard
authors.initials: H
authors.lastname: Bauchner
authors.forename: Phil B
authors.initials: PB
authors.lastname: Fontanarosa