1. From the Department of Pathology, Upstate Medical University, State University of New York, Syracuse, New York, the Division of Gerontology, Brigham and Women’s Hospital, and Hebrew Rehabilitation Center for the Aged, and Division of Urology and Geriatric Research, Education and Clinical Center, Veterans Administration Boston Health Care System, Boston, Massachusetts, and the Department of Urology, University of Heidelberg, Heidelberg, Germany