1. Third Department of Medicine (O.P., P.K., B.Š., J.R., R.H., A.B.V., M.H., T.Z., J.W.)
2. Department of Abdominal, Thoracic Surgery, and Traumatology, Institute of Sports Medicine (D.H.)
3. Institute of Medical Biochemistry and Laboratory Medicine (A.B.V.), First Faculty of Medicine, Charles University and General University Hospital, Prague 2 128 08, Czech Republic
4. Department of Endocrinology and Metabolism, First Department of Surgery (D.M.)