1. From the Division of Urology (JL, EO, CPS, WCC, JR, DIL, PAH) and Department of Pathology (PAH), Washington University School of Medicine, St. Louis, Missouri, Department of Urology, Universidad Federal (CA), São Paulo, Brazil, Division of Urology, University of Wisconsin (TJJ, SYN), Madison, Wisconsin, Department of Urology, University of Oklahoma Health Sciences Center (HKL, EHN), Oklahoma City, Oklahoma, and Department of Urology, University of California-Irvine, (RVC), Irvine, California