1. Department of Urology Ankara Numune Research and Training Hospital Ankara Turkey
2. Department of Urology Mersin Toros State Hospital Mersin Turkey
3. Department of Urology Erzincan University Mengucek Gazi Research and Training Hospital Erzincan Turkey
4. Department of Biostatistic Ankara University School of Medicine Ankara Turkey
5. Department of Urology Diyarlife Dagkapı Private Hospital Diyarbakır Turkey