1. From the Department of Rehabilitation, Unit of Functional Recovery, San Raffaele Hospital, Milan, Italy (D.C., V.S., R.G.); Department of Biomedical Sciences for Health, University of Milan, Italy (G.C., L.M.); Clinical Epidemiology Unit, IRCCS Galeazzi Orthopedic Institute, Milan, Italy (G.C., L.M.); and Bachelor of Physiotherapy, Faculty of Medicine and Surgery, University Vita-Salute San Raffaele, Milan, Italy (R.G.).