1. From the London School of Hygiene and Tropical Medicine, London, UK (S.J.P., T.C.C.); Columbia University Medical Center and Cardiovascular Research Foundation, New York, NY (R.M., E.N., H.P., M.F., A.J.L., J.W.M., G.W.S.); Hopital Cardiologique, Lille, France (M.E.B.); The Cleveland Clinic, Cleveland, Ohio (A.M.L.); Duke University Medical Center, Durham, NC (E.M.O.); and Auckland City Hospital, Auckland, New Zealand (H.D.W.).