1. Department of Plastic, Reconstructive and Hand Surgery; VU University Medical Center; Amsterdam The Netherlands
2. Urology Clinic; Department of Medical, Surgical and Health Science; University of Trieste; Trieste Italy
3. School of Medicine; University of Belgrade; Belgrade Serbia
4. Department of Urology; University Hospital Essen; Essen Germany
5. Department of Gastro-Intestinal Surgery and Advanced Laparoscopy; VU University Medical Center; Amsterdam The Netherlands
6. Department of Operation Rooms; Radboud University Medical Centre; Nijmegen The Netherlands
7. Department of Urology; Kliniken Essen Mitte; Essen Germany