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.
Artifon EL, Sakai P, Cunha JE, Dupont A, Filho FM, Hondo FY, Ishioka S, Raju GS.Artifon EL, et al.Am J Gastroenterol. 2006 Sep;101(9):2031-7. doi: 10.1111/j.1572-0241.2006.00764.x.Am J Gastroenterol. 2006.PMID: 16968509Clinical Trial.
Artifon EL, Couto Júnior DS, Sakai P.Artifon EL, et al.Rev Col Bras Cir. 2010 Apr;37(2):143-52. doi: 10.1590/s0100-69912010000200012.Rev Col Bras Cir. 2010.PMID: 20549105Free article.Review.Portuguese.