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.
Brunetto AF, Roseguini BT, Silva BM, Hirai DM, Guedes DP.Brunetto AF, et al. Among authors: hirai dm.Rev Assoc Med Bras (1992). 2005 Sep-Oct;51(5):256-60; discussion 255. doi: 10.1590/s0104-42302005000500015. Epub 2005 Oct 31.Rev Assoc Med Bras (1992). 2005.PMID: 16270141Free article.Portuguese.