1. Hand Surgery Unit EOC, Surgical Department, Locarno’s Regional Hospital, Locarno, Switzerland
2. Locarno Hand Center, Locarno, Switzerland
3. Department of Plastic Surgery, First Faculty of Medicine, Charles University and Na Bulovace University Hospital, Prague 8-Liben, Czech Republic
4. Department of Plastic Surgery and Hand Surgery, University Hospital Zürich, Zürich, Switzerland