1. From the Department of Medicine II (C.E.-K., H.J.R., S.S., T.M., S.B.), Department of Clinical Chemistry (K.L.), and Institute of Medical Biostatistics Epidemiology and Informatics (IMBEI) (C.M.M.), Johannes Gutenberg University, Mainz, Germany; and Department of Internal Medicine (C.B.), Bundeswehrzentralkrankenhaus, Koblenz, Germany.