1. From the Division of Urologic Surgery, Washington University School of Medicine, St. Louis, Missouri
2. Division of Urologic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
3. Division of Urology, University of California School of Medicine, Los Angeles and Department of Clinical Research and Regulatory Affairs, Hybritech Incorporated, San Diego, California
4. Divisions of Urology and Hematology-Oncology, University of Arizona College of Medicine and Tucson Veterans Affairs Medical Center, Tucson, Arizona