1. Department of Urology, School of Medicine, Marmara University, Istanbul, Turkey
2. Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
3. Clinical Institute of Urology and Renal Transplant, Cluj-Napoca, Romania
4. Department of Urology, Asklepios Hospital Barmbek, Hamburg, Germany
5. Department of Urology, Tenon University Hospital, Pierre and Marie Curie University, Paris, France