1. Departments of Clinical Chemistry (K.W., M.M.H., I.F., H.W.), Germany
2. Obstetrics and Gynecology (B.W., M.K., H.-P.Z.), Germany
3. Sports Medicine (M.W.B.), University of Freiburg, Germany
4. Clinical Institute of Medical and Chemical Laboratory Diagnostics (W.M.), University of Graz, Graz, Austria