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McCrickard LS, Crim SM, Kim S, Bowen A.McCrickard LS, et al. Among authors: bowen a.BMC Public Health. 2018 Feb 7;18(1):221. doi: 10.1186/s12889-018-5115-4.BMC Public Health. 2018.PMID: 29415691Free PMC article.
Bowen A, Fry A, Richards G, Beuchat L.Bowen A, et al.Epidemiol Infect. 2006 Aug;134(4):675-85. doi: 10.1017/S0950268805005480. Epub 2005 Dec 1.Epidemiol Infect. 2006.PMID: 16318654Free PMC article.Review.