1. From the Department of Urology, William Beaumont Hospital (ACD), Royal Oak and Institute for Social Research, University of Michigan (NHF), Ann Arbor, Michigan, Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Department of Veterans Affairs Medical Center (KB) and University of Alabama Birmingham School of Medicine (KB), Birmingham, Alabama, and Lilly Research Labs, Eli Lilly and Co. (KSK, RO, RCB), Indianapolis, Indiana