Lei Q, Wang D, Liu C, Ji Z, Yan S.
Department of Urology, Peking Union Medical College Hospital, Beijing, China.

Adeldaeim HM, Abouyoussif T, Gebaly OE, Assem A, Wahab MMA, Rashad H, Sakr M, Zahran AR.
Department of Urology, Alexandria University, Alexandria, Egypt.
Department of Urology, Alexandria University, Alexandria, Egypt.
Family and Community Medicine, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia.

Guler Y, Erbin A.
Department of Urology, Private Safa Hospital, Istanbul, Turkey.
Department of Urology, Haseki Traning and Research Hospital, Istanbul, Turkey.

Ito K, Takahashi T, Kanno T, Okada T, Higashi Y, Yamada H.
Department of Urology, Ijinkai Takeda General Hospital, Kyoto, Japan.

Ozer C, Tekin MI. 
Department of Urology, Baskent University, Adana.