1. From the Duke Clinical Research Institute (S.D.R., D.J.W., Y.L., J.Y.F., S.J.E., S.J.S., L.D.-R., C.M.O., K.A.S.) and Department of Medicine (S.D.R., D.J.W., J.L.J., C.M.O., K.A.S.), Duke University School of Medicine, Durham, NC; the Department of Medicine, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pa (D.J.W.); the Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio (I.L.P.); and the Division of Cardiovascular Sciences, National...