1. Department of Surgery, College of Medicine, Qassim University, Buraidah, Qassim, Saudi Arabia
2. Department of Urology, King Fahad Specialist Hospital, Buraidah, Qassim, Saudi Arabia
3. Department of Medicine, College of Medicine, Qassim University, Buraidah, Qassim, Saudi Arabia
4. Urology and Nephrology Center, Assiut University Hospital, Assiut, Egypt