Affiliation: | 1. Physical Medicine & Rehabilitation, University of Toronto, Toronto, Ontario, Canada;2. University of Pittsburgh Medical Center Center for Sports Medicine, Pittsburgh, Pennsylvania, U.S.A.;3. Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada;4. MedSport, Department of Orthopaedic Surgery, University of MichiganAnn Arbor, Michigan, U.S.A. |