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.
Hendriksen ES, Pettifor A, Lee SJ, Coates TJ, Rees HV.Hendriksen ES, et al. Among authors: pettifor a.Am J Public Health. 2007 Jul;97(7):1241-8. doi: 10.2105/AJPH.2006.086009. Epub 2007 May 30.Am J Public Health. 2007.PMID: 17538062Free PMC article.
Lane T, Pettifor A, Pascoe S, Fiamma A, Rees H.Lane T, et al. Among authors: pettifor a.AIDS. 2006 Jan 2;20(1):123-5. doi: 10.1097/01.aids.0000198083.55078.02.AIDS. 2006.PMID: 16327330