IM Spence-Lewis MD, 07 Aug 2019 https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-018-5626-z
IM Spence-Lewis MD, 15 Oct 2018 https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-018-5626-z