1. Department of Cardiology, University Medical Center Mainz, Germany (F.K., A.R.T., T.F.R., A.B.-F., J.R., M.G., J.d.R.e.S., K.S., H.M., T.M., R.S.v.B.).
2. Department of Cardiology, Westchester Medical Center, Valhalla, NY (S.Z.).
3. Department of Cardiovascular Surgery, Mount Sinai Hospital, NY (G.H.L.T.).