1. From the Albion Finch Medical Centre, William Osler Health Centre, Toronto (A.G.); Optimus U (Y.G.-R.) and Florida International Medical Research (E.J.), Miami, Pines Care Research Center, Pembroke Pines (J.M.), and Sarkis Clinical Trials, Gainesville (E.S.) — all in Florida; Álvaro Cunqueiro Hospital, IIS Galicia Sur, Vigo, Spain (M.C.C.); Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil (D.R.F.); Centex Studies, McAllen (J. Solis), and Central Texas Clinical Research, Austin (C.B.) — both in...