1. Kaiser Permanente Center for Health Research , Portland, OR, USA
2. Lineberger Comprehensive Cancer Center, Carolina Cancer Screening Initiative, University of North Carolina, Chapel Hill , Chapel Hill, NC, USA
3. Research Triangle International , Research Triangle Park, NC, USA
4. Department of Psychology, South Bay Latino Research Center, San Diego State University , Chula Vista, CA, USA
5. Department of Internal Medicine, Healthy Kentucky Research Building, University of Kentucky , Lexington, KY, USA
6. Department of Family Medicine and School of Public Health, Oregon Rural Practice-based Research Network, Oregon Health and Science University , Portland, OR, USA
7. Department of Family and Preventive Medicine, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, University of Oklahoma , Oklahoma City, OK, USA
8. Albuquerque Area Southwest Tribal Epidemiology Center, Albuquerque Area Indian Health Board, Inc , Albuquerque, NM, USA
9. University of Arizona Cancer Center, University of Arizona , Tucson, AZ, USA
10. University of Chicago , Chicago, IL, USA
11. Division of Cancer Control and Population Sciences, National Cancer Institute , Rockville, MD, USA
12. Department of Medicine, Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University , Chicago, IL, USA
13. University of New Mexico Comprehensive Cancer Center and Departments of Pediatrics and Family and Community Medicine, University of New Mexico Health Sciences Center , Albuquerque, NM, USA
14. Department of Family Medicine and Public Health, Moores UC San Diego Cancer Center, University of California, San Diego , La Jolla, CA, USA
15. Comprehensive Cancer Center, Ohio State University , Columbus, OH, USA
16. Department of Internal Medicine, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA