An official website of the United States government
The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
The site is secure.
The https:// ensures that you're connecting to the official website and that any information you provide is encrypted and sent securely.
If you are a Veteran in crisis or concerned about one, connect with our caring, qualified responders for confidential help. Many of them are Veterans themselves.
Colorectal Cancer Screening and Surveillance: How, Who, and How Often?
Lieberman DA. Colorectal Cancer Screening and Surveillance: How, Who, and How Often? Paper presented at: Digestive Disease Week Annual Meeting; 2008 May 19; San Diego, CA.