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Dorman E, Perry B, Polis CB, Campo-Engelstein L, Shattuck D, Hamlin A, Aiken A, Trussell J, Sokal D.Dorman E, et al. Among authors: shattuck d.Contraception. 2018 Jan;97(1):62-69. doi: 10.1016/j.contraception.2017.08.015. Epub 2017 Sep 5.Contraception. 2018.PMID: 28887053Free PMC article.