1. Department of Vascular Surgery; University of Erlangen; Erlangen Germany
2. Department of Surgery; University Medical Center Mannheim; Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
3. Department of Urology; University of Erlangen; Erlangen Germany
4. Department of Medicine V; University Medical Center Mannheim; Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
5. Department of Nephrology; University of Erlangen; Erlangen Germany