1. From the Scripps Clinic and Scripps Translational Science Institute, La Jolla, CA (M.J.P., P.S.T., E.L., E.J.T.); University of Florida College of Medicine, Jacksonville (D.J.A.); Sarah Cannon Research Institute and Hospital Corporation of America, Nashville, TN (S.V.M.); Geisinger Clinic, Danville, PA (P.B.B.); Montreal Heart Institute, Montreal, Quebec, Canada (J.T.); and Brigham and Women's Hospital, Boston, MA (C.P.C.).