1. Department of Plastic Surgery and Hand Surgery, University Hospital Zürich, Zürich, Switzerland
2. Blond McIndoe Laboratories and Department of Plastic Surgery, University of Manchester and Manchester University Foundation Trust, Manchester, UK
3. Divison of Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
4. Department of Orthopedic Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
5. Department of Plastic Surgery, Hand Surgery, and Burns, Linköping University, Linköping, Sweden