Yoo DE, Han SH, Oh HJ, Kim SJ, Shin DH, Lee MJ, Yoo TH, Kang SW, Choi KH.
Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea

Fayad A, El-Sheikh MG, El-Fayoumy H, El-Sergany R, Abd El Bary A.
Urology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.

Ahmed MH, Ahmed HT, Khalil AA.
Department of Medicine, Wexham Park Hospital, Slough, Berkshire, UK

Kruck S, Anastasiadis AG, Herrmann TR, Walcher U, Abdelhafez MF, Nicklas AP, Hölzle L, Schilling D, Bedke J, Stenzl A, Nagele U.
Department of Urology, University of Tuebingen, Tübingen, Germany.

Zhang LJ.
Department of Urology, University of Texas Southwestern Medical Center, Dallas, USA.