1. Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2. Faculty of Medicine, Imam Reza Hospital, and Evidence Based Medicine Committee, Mashhad University of Medical Sciences, Mashhad, Iran
3. Department of Urology, Mashhad University of Medical Sciences, Mashhad, Iran
4. Department of Urology, The Netherlands Cancer Institute – Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands