1. From the Department of Cardiothoracic and Vascular Surgery (D.P., J.M., M.D., H.O.) and Department of Medicine–Cardiology (M.S., U.B., J.M., H.D., M.B.), Johannes Gutenberg-University, Mainz, and Department of Medicine II (U.S., U.G., F.G., W.S.), Justus Liebig University, Giessen, Germany.