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.
Bowring AL, Peeters A, Freak-Poli R, Lim MS, Gouillou M, Hellard M.Bowring AL, et al.BMC Med Res Methodol. 2012 Nov 21;12:175. doi: 10.1186/1471-2288-12-175.BMC Med Res Methodol. 2012.PMID: 23170838Free PMC article.
Jenkinson R, Bowring A, Dietze P, Hellard M, Lim MS.Jenkinson R, et al.J Sex Transm Dis. 2014;2014:357239. doi: 10.1155/2014/357239. Epub 2014 Dec 11.J Sex Transm Dis. 2014.PMID: 26316974Free PMC article.
Bowring AL, Pasomsouk N, Higgs P, Sychareun V, Hellard M, Power R.Bowring AL, et al.Asia Pac J Public Health. 2015 Nov;27(8):820-34. doi: 10.1177/1010539515612909.Asia Pac J Public Health. 2015.PMID: 26543164