1. From the University Heart Center Lübeck, Medical Clinic II (Cardiology/Angiology/Intensive Care Medicine), Germany (T.S., J.-O.J., S.d.W.-T., G.F., I.E.)
2. German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Lübeck, Germany (T.S., J.-O.J., S.d.W.-T., G.F., S.D., I.E.)
3. Heart Center Leipzig, University Hospital, Department of Internal Medicine/Cardiology, Germany (K.-P.R., S.D., H.T.).