Affiliation: | (1) Department of Urology, University Medical Center Nijmegen, P.O. Box 9101, 6500 HB Nijmegen, the Netherlands;(2) Department of Epidemiology, NUTRIM, Maastricht University, P.O. Box 616, 6200 Maastricht, MD, the Netherlands;(3) Department of Pathology, University Medical Center Nijmegen, P.O. Box 9101, 6500 HB Nijmegen, the Netherlands |