1. From the Department of Internal Medicine/Cardiology (I.E., D.G., O.A., S.d.W., S.D., G.S., H.T.) and Department of Diagnostic and Interventional Radiology (M.G.), University of Leipzig, Heart Center, Leipzig, Germany; Department of Internal Medicine II – Cardiology, University of Ulm, Ulm, Germany (J.W.); Herz- und Gefäß-Klinik Bad Neustadt, Bad Neustadt, Germany (S.K.); Zentralklinik Bad Berka, Bad Berka, Germany (B.L.); Klinikum Nürnberg, Medizinische Klinik/Kardiologie, Nürnberg, Germany (M.P., J...