1. Department of Anesthesia and Intensive Care University Hospital of Marburg Philipps University Marburg Marburg Germany
2. Research Group Medical Ethics Philipps University Marburg Marburg Germany
3. Department of Dermatology and Allergology Skin Tumor Center University Hospital of Marburg Philipps University Marburg Marburg Germany
4. Department of Urology University Hospital of Marburg Philipps University Marburg Marburg Germany