1. Department of Urology, University of Washington Medical Center, Seattle, WA, USA
2. Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
3. Department of Public Health, Erasmus Medical Center, Rotterdam, The Netherlands
4. Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
5. Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA