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.
Oliver SE, Gorbach PM, Gratzer B, Steinau M, Collins T, Parrish A, Kerndt PR, Crosby RA, Unger ER, Markowitz LE, Meites E.Oliver SE, et al. Among authors: gratzer b.Sex Transm Dis. 2018 Oct;45(10):660-665. doi: 10.1097/OLQ.0000000000000845.Sex Transm Dis. 2018.PMID: 30204745Free PMC article.