1. Department of Internal Medicine I, University Hospital of the RWTH Aachen, Germany (A.M., R.D., R.K.L., N.M., M.B.).
2. Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale (EOC), Università Della Svizzera Italiana, Lugano, Switzerland (A.M.).
3. Department of Cardiology, Angiology and Electrophysiology, St. Franziskus Hospital, Münster, Germany (S.R.).
4. Faculty of Applied Healthcare Science, Deggendorf Institute of Technology, Germany (K.B., M.B.).