1. From the Division of Endocrinology, Diabetes, and Hypertension (L.P., N.S.K., J.S.W., G.H.W.), Division of Cardiology (T.S.P.), and Channing Laboratory (B.A.R.), Brigham and Women’s Hospital, and Harvard Medical School, Boston, Mass; Centre d’Investigation Clinique (X.J.), Departement de Genetique, Hôpital Européen Georges Pompidou, Paris, France; Departments of Medicine and Pharmacology (N.J.B.), Vanderbilt University Medical Center, Nashville, Tenn; and the Department of Medicine (P.N.H.),...