1. Department of Urology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California
2. Jonsson Comprehensive Cancer Center, University of California-Los Angeles, Los Angeles, California
3. Department of Urology, University of California, Irvine, Irvine, California
4. Health Policy Research Institute, Irvine, Irvine, California
5. Department of Medicine, University of California, Irvine, Irvine, California
6. Department of Health Services, School of Public Health, University of California-Los Angeles, Los Angeles, California