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.
Cooper K, Martyn-St James M, Kaltenthaler E, Dickinson K, Cantrell A, Ren S, Wylie K, Frodsham L, Hood C.Cooper K, et al. Among authors: ren s.Sex Med. 2017 Mar;5(1):e1-e18. doi: 10.1016/j.esxm.2016.08.002. Epub 2016 Dec 29.Sex Med. 2017.PMID: 28041925Free PMC article.Review.