1. From the Departments of Obstetrics and Gynecology, and Urology, University of California, Davis and Department of Urology, University of California, San Francisco, California, Merck Research Laboratories, Rahway, New Jersey, Department of Urology, University of Virginia Health Sciences Center, Charlottesville, Virginia, Department of Urology, Mayo Clinic, Rochester and Midwest Center for Reproductive Health, Minneapolis, Minnesota, Department of Urology, Tulane University Medical School, New Orleans...