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.
Tomizawa Y, Iyer PG, Wong Kee Song LM, Buttar NS, Lutzke LS, Wang KK.Tomizawa Y, et al. Among authors: wang kk.Am J Gastroenterol. 2013 Sep;108(9):1440-7; quiz 1448. doi: 10.1038/ajg.2013.187. Epub 2013 Jul 16.Am J Gastroenterol. 2013.PMID: 23857478Free PMC article.