1. From the Department of Cardiology (G.G., C.D., P.S.M., M.F.M., C.M., T.F.L., U.L.), Cardiovascular Center, University Hospital Zurich, Zurich, Switzerland; Cardiovascular Research (G.G., C.D., P.S.M., M.F.M., C.M., T.F.L., U.L.), Institute of Physiology, University of Zurich, Zurich, Switzerland; Department of Cardiology and Angiology (G.G., C.D., M.F.M., T.H., S.A.S., N.S., C.M., H.D., U.L.), Hannover Medical School, Hannover, Germany; Cardiac and Thoracic Department (G.G., M.M.), University...