1. From the National Heart, Lung, and Blood Institute (P.M.S., R.B.), Bethesda, Md; Brigham and Women’s Hospital (C.A.), Boston, Mass; Boston University (E.J.B.), Boston, Mass; Case Western Reserve University (R.C.E.), Cleveland, Ohio; Vanderbilt University (A.L.G.), Nashville, Tenn; Hospital Boucicaut, Paris, France (X.J.); University of Pittsburgh (L.H.K.), Pittsburgh, Pa; Southwest Foundation for Biomedical Research (J.W.M.), San Antonio, Tex; Johns Hopkins Medical School (E.M.), Baltimore, Md;...