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.
Rodrigues D, Reverbel da Silveira T, Matte U; Study Group on Experimental Hepatology.Rodrigues D, et al.Arq Gastroenterol. 2012 Dec;49(4):291-5. doi: 10.1590/s0004-28032012000400011.Arq Gastroenterol. 2012.PMID: 23329225Free article.