1. Department of Medicine III (Interdisciplinary Medical Intensive Care), Medical Center, Faculty of Medicine University of Freiburg Freiburg Germany
2. Department of Cardiology and Angiology I, Heart Center Freiburg University, Faculty of Medicine University of Freiburg Freiburg Germany
3. Division of Infectious Diseases, Department of Medicine II, Medical Center, Faculty of Medicine University of Freiburg Freiburg Germany
4. Institute of Medical Biometry and Statistics, University Medical Center Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany