Department of Internal Medicine, University of Giessen, Giessen, Germany
University Clinic Giessen, 35392 Giessen, Hessen, Germany
Johann Wolfgang Goehte University Clinic, 60590 Frankfurt, Hessen, Germany
Kerckhoff Clinic, 61231 Bad Nauheim, Hessen, Germany
University Hospital Giessen and Marburg, Giessen, Hessen, Germany
StiL Head Office; Justus-Liebig-University, Giessen, Germany
Hospital of the Justus-Liebig-University, Giessen, Hessen, Germany
Justus-Liebig-University, Giessen, Germany
University of Gießen, Dept. of General Surgery, Gießen, Hesse, Germany
Clinical Research Unit, Giessen, Germany
Department of Internal Medicine, University of Giessen, Giessen, Germany