Ahmed AF, Shalaby E, Maarouf A, Badran Y, Eladl M, Ghobish A.
Department of Urology, Al-Azhar University, Cairo, Egypt.
Department of Urology, Salman bin Abdulaziz University, Al-kharj, Kingdom of Saudi Arabia.
Department of Urology, Suez Canal University, Ismailia, Egypt.
Department of Urology, El-Iman General Hospital, Riyadh, Kingdom of Saudi Arabia.
Department of Urology, Zagazig University, Zagazig, Egypt.
Department of Urology, King Abdullah Hospital, Bisha, Kingdom of Saudi Arabia.

Chung DY, Cho KS, Lee DH, Han JH, Kang DH, Jung HD, Kown JK, Ham WS, Choi YD, Lee JY.
Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea.
Department of Urology, Gangnam Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea.
Department of Urology, Severance Check-Up, Yonsei University Health System, Seoul, Korea.
Department of Urology, Yangpyeong Health Center, Yangpyeong, Korea.
Department of Urology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.

Demir A, Türker P, Bozkurt SU, İlker YN.
Department of Urology, Kafkas University, Medical School, Kars, Turkey.
Department of Urology, Namik Kemal University, Medical Faculty, Tekirdağ, Turkey.
Department of Pathology, Marmara University, School Of Medicine, Istanbul, Turkey.
Department of Urology, Anadolu Health Center, Kocaeli, Turkey.

Fankhauser CD, Kranzbühler B, Poyet C, Hermanns T, Sulser T, Steurer J.
Klinik für Urologie, UniversitätsSpital Zürich, Zürich, Switzerland.

Irkilata L, Ozgur BC, Sancaktutar AA, Akdeniz E, Aydin M, Demirel HC, Aydin HR, Doluoglu OG, Resorlu B, Atilla MK.
Department of Urology, Samsun Training and Research Hospital, Fevzi Çakmak Mahallesi, Altın Yunus Sokak, Liva Park Sitesi, B-2 Blok, Ilkadım, Samsun, Turkey.