Hertzig LL, Iwaszko MR, Rangel LJ, Patterson DE, Gettman MT, Krambeck AE
Department of Urology, Mayo Clinic, Rochester, MN.

Riley JM, Averch TD
University of Pittsburgh Medical Center, PA 15213, USA

Pearle MS
Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9110, USA

Ng CF, Law VT, Chiu PK, Tan CB, Man CW, Chu PS
Division of Urology, Department of Surgery, 4/F Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China

Ng CF, Lo AK, Lee KW, Wong KT, Chung WY, Gohel D
Division of Urology, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, People's Republic of China