1. From the Medical University of South Carolina and RHJ Department of Veterans Affairs Medical Center, Charleston (M.R.Z.); Medtronic, Inc, Minneapolis, Minn (T.D.B., Y.K.C., F.J.K.); University of Pennsylvania, Philadelphia (M.S.J.S.); University of Oklahoma Health Sciences Center, Oklahoma City (P.B.A.); St Thomas Hospital, Nashville, Tenn (M.F.A.); University of Florida, Gainesville (J.M.A.); Ohio State University, Columbus (W.T.A.); Texas Heart Institute, Houston (F.W.S.); Brigham and Woman’s...