Summary: Summary of the March 5, 2013 issue, including articles on colorectal cancer screening, Neisseria gonorrhoeae, hepatitis C virus and hepatocellular carcinoma, and cognitive impairment and atrial fibrillation, as well as a commentary on access to care for undocumented migrants and an accompanying supplement, "Making Health Care Safer: A Critical Review of Evidence Supporting Strategies to Improve Patient Safety."
