1. Department of Cardiology, Heart Center Leipzig at University of Leipzig, Germany (K.F., K.-P.R., S.B., C.B., P.H., M.v.R., S.W., S.D., H.T., P.L.).
2. Leipzig Heart Institute at Heart Center Leipzig, Germany (M.P.).
3. Technische Universität Dresden, Heart Center Dresden University Hospital, Germany (R.H.).