From the Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia (M.S.S., T.P.); Department of Medicine, Oklahoma Heart Hospital, Oklahoma City (P.B.A.); Medtronic, Inc, Mounds View, MN (P.L., S.A.C.); Department of Medicine, Ohio Heart and Vascular Center, Cincinnati (E.S.C.); and Department of Medicine, University at Buffalo, NY (A.B.C.).(At 2015-05)
