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Alexander LT, Fuentes-Rivera E, Saavedra-Avendaño B, Schiavon R, Maldonado Rueda N, Hernández B, Drake AL, Darney BG.Alexander LT, et al.BMJ Sex Reprod Health. 2019 Aug 14;45(4):283-9. doi: 10.1136/bmjsrh-2018-200300. Online ahead of print.BMJ Sex Reprod Health. 2019.PMID: 31413159Free PMC article.