1. Klinik für Allgemein-, Gefäß-, und Viszeralchirurgie, Martin-Luther-Krankenhaus, Berlin, Germany;
2. Department of Orthopaedics, University of Utah School of Medicine, and Department of Veterans Affairs Salt Lake City Health Care System, Salt Lake City, UT;
3. Department of Bioengineering, University of Utah, Salt Lake City, UT;
4. Clinic for Plastic, Hand, and Reconstructive Surgery, SANA Kliniken Lübeck, Lübeck, Germany