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Pines HA, Semple SJ, Strathdee SA, Hendrix CW, Harvey-Vera A, Gorbach PM, Magis-Rodríguez C, Martinez G, Patterson TL.Pines HA, et al.BMC Public Health. 2018 Aug 14;18(1):1009. doi: 10.1186/s12889-018-5946-z.BMC Public Health. 2018.PMID: 30107833Free PMC article.Clinical Trial.