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.
Li N, Aoki V, Hans-Filho G, Rivitti EA, Diaz LA.Li N, et al. Among authors: aoki v.J Exp Med. 2003 Jun 2;197(11):1501-10. doi: 10.1084/jem.20022031. Epub 2003 May 27.J Exp Med. 2003.PMID: 12771179Free PMC article.