1. From the University Clinic of Giessen, Department of Cardiology, Giessen, Germany (O.D., H.M., S.A., D.S., C.H., H.M.N.); Department of Cardiology, Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany (H.M., D.B., C.L., S.S., C.H., H.M.N.); Department of Cardiology, Klinikum Oldenburg, Germany (A.E.); University Clinic of Giessen, Department of Cardiovascular Surgery, Giessen, Germany (P.R., A.B.).