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.
Chen YY, Su WW, Soon MS, Yen HH.Chen YY, et al. Among authors: yen hh.Gastrointest Endosc. 2005 Oct;62(4):630-2. doi: 10.1016/s0016-5107(05)01583-x.Gastrointest Endosc. 2005.PMID: 16185987No abstract available.
Chen YY, Su WW, Soon MS, Yen HH.Chen YY, et al. Among authors: yen hh.Dig Dis Sci. 2006 Sep;51(9):1670-2. doi: 10.1007/s10620-005-9039-3. Epub 2006 Aug 22.Dig Dis Sci. 2006.PMID: 16927147