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.
Black E, Hyslop F, Richmond R.Black E, et al. Among authors: richmond r.BMC Womens Health. 2019 Aug 9;19(1):108. doi: 10.1186/s12905-019-0809-z.BMC Womens Health. 2019.PMID: 31399092Free PMC article.
Black E, Richmond R.Black E, et al. Among authors: richmond r.Vaccines (Basel). 2018 Sep 8;6(3):61. doi: 10.3390/vaccines6030061.Vaccines (Basel). 2018.PMID: 30205561Free PMC article.Review.
Black E, Richmond R.Black E, et al. Among authors: richmond r.Global Health. 2019 Jan 8;15(1):3. doi: 10.1186/s12992-018-0446-6.Global Health. 2019.PMID: 30621753Free PMC article.Review.
Obol JH, Harrison R, Lin S, Obwolo MJ, Richmond R.Obol JH, et al. Among authors: richmond r.BMC Public Health. 2020 Sep 14;20(1):1396. doi: 10.1186/s12889-020-09482-y.BMC Public Health. 2020.PMID: 32928155Free PMC article.
Obol JH, Lin S, Obwolo MJ, Harrison R, Richmond R.Obol JH, et al. Among authors: richmond r.BMC Health Serv Res. 2021 Aug 11;21(1):794. doi: 10.1186/s12913-021-06795-5.BMC Health Serv Res. 2021.PMID: 34380470Free PMC article.