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 are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Wilson D, Evans M, Weaver E, Shaw AL, Klein GL.Wilson D, et al.Clin Med Insights Gastroenterol. 2013 Dec 5;6:49-60. doi: 10.4137/CGast.S13200. eCollection 2013.Clin Med Insights Gastroenterol. 2013.PMID: 24833942Free PMC article.