1. Richardson LC, Rim SH, Plescia M. Vital signs: Colorectal cancer screening among adults aged 50–75years‑United States, 2008. Morbidity and Mortality Weekly Report, 2010. 59:P.1–4. Centers for Disease Control and Prevention Web site. http:www.cdc.gov/mmwr/preview/mmwrhtml/mm5926a3.htm?s_cid=mm5926a3_w. Updated 2009. Accessed August, 31, 2010.
2. Patterns of colorectal cancer screening uptake among men and women in the United States;Meissner;Cancer Epidemiol. Biomarkers Prev.,2006