1. Program in Health Disparities Research, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN
2. Division of Biostatistics, University of Minnesota School of Public Health, Minneapolis, MN
3. Department of Biostatistics, University of Alabama at Birmingham School of Public Health, Birmingham, AL
4. Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL
5. Department of Urology, University of Minnesota Medical School, Minneapolis, MN