1. From the Department of Internal Medicine I (D.L., K.H., M.N., S.H., S.S., P.D.G., G.E., F.W.), Comprehensive Heart Failure Center (D.L., K.H., M.N., S.H., S.S., P.D.G., G.E., F.W.), and Department of Internal Medicine II (S.K.), University of Würzburg, Würzburg, Germany; Department of Cardiovascular Diseases, University Hospital Center Zagreb and School of Medicine, University of Zagreb, Zagreb, Croatia (M.C.); ICREA–Universitat Pompeu Fabra, Barcelona, Spain (B.B.); and Department of Cardiovascular...