1. Hand Surgery, Ludwig-Maximilians-University, Munich, Germany
2. Plastic Surgery, Ludwig-Maximilians-University, Munich, Germany
3. Aesthetic Surgery, Ludwig-Maximilians-University, Munich, Germany
4. Department of Plastic, Reconstructive, Hand and Burn Surgery, Bogenhausen Academic Teaching Hospital, Munich, Germany
5. Department of Plastic, Hand and Reconstructive Surgery, University Medical Center, Regensburg, Germany