1. Department of Trauma and Reconstructive Surgery; University Medicine Greifswald; Greifswald Germany
2. Department of Trauma and Orthopedic Surgery; Unfallkrankenhaus Berlin; Berlin Germany
3. Department of Dermatology; University Medicine Greifswald; Greifswald Germany
4. Department of Urology; Research Laboratory; University Medicine Greifswald; Greifswald Germany