1. Department of Urology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
2. Department of Urology, Endoplus Clinic, 400165 Cluj-Napoca, Romania
3. Department of Epidemiology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
4. Department of Urology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
5. Department of Urology, “Prof. Dr. Th. Burghele” Clinical Hospital, 061344 Bucharest, Romania
6. Department of Medical Informatics and Biostatistics, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
7. Bistrita County Emergency Hospital, 420016 Bistrita, Romania
8. Department of Surgery, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
9. Department of Surgery, Regional Institute of Gastroenterology and Hepatology “Octavian Fodor”, 400394 Cluj-Napoca, Romania