1. From the Department of Cardiology, Hospital Universitario Puerta de Hierro-Majadahonda, Madrid, Spain (L.N.-F., C.D.M., I.F.-L., A.G.-T., J.T., V.C.-U., J.A.F.-D., E.P.-P., P.B.-C., J.S., J.G., L.A.-P.); and Department of Internal Medicine I, Klinikum Darmstadt, Darmstadt, Germany (G.S.W.).