1. From the Department of Internal Medicine I, Innsbruck Medical University, Innsbruck, Austria (A.R., P.E., I.T., K.D., E.D., A.S., J.R.P.); Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria (H.S., W.M.); Division of Endocrinology, Department of Medicine, University Hospital, Ulm, Germany (B.O.B.); Cardiology Group, Frankfurt-Sachsenhausen, Germany (B.R.W.); Synlab Center of Laboratory Diagnostics, Heidelberg, Germany (W.M.); and Mannheim...