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.
Peragallo N, Gonzalez-Guarda RM, McCabe BE, Cianelli R.Peragallo N, et al. Among authors: mccabe be.AIDS Behav. 2012 Jul;16(5):1316-26. doi: 10.1007/s10461-011-0052-6.AIDS Behav. 2012.PMID: 21969175Free PMC article.