1 Surgical Department - Hand Surgery Unit EOC, Locarno's Regional Hospital, 6600 Locarno, Switzerland.
2 Locarno Hand Center, Via Ramogna 16, 6600 Locarno, Switzerland.
3 Department of Plastic Surgery, First Faculty of Medicine, Charles University and Na Bulovace University Hospital, Budinova 67/2, 18081 Prague 8-Liben, Czech Republic.
4 Department of Plastic Surgery and Hand Surgery, University Hospital Zürich, 8091 Zürich, Switzerland.