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.
Rayment M, Curtis H, Carne C, McClean H, Bell G, Estcourt C, Roberts J, Wilkins E, Estreich S, Morris G, Phattey J, Sullivan AK; members of the British Society for Sexual Health and HIV National Audit Group, and the British HIV Association Audit and Standards Subcommittee.Rayment M, et al.Sex Transm Infect. 2017 Mar;93(2):94-99. doi: 10.1136/sextrans-2015-052532. Epub 2016 Aug 5.Sex Transm Infect. 2017.PMID: 27496615