1. Department of Urology, University of California, San Francisco, San Francisco, California.
2. Division of Urology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok, Thailand.
3. Department of Nephro-Urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
4. Department of Urologic Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee.