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Trussell J, Henry N, Hassan F, Prezioso A, Law A, Filonenko A.Trussell J, et al.Contraception. 2013 Feb;87(2):154-61. doi: 10.1016/j.contraception.2012.07.016. Epub 2012 Sep 7.Contraception. 2013.PMID: 22959904Free PMC article.
Trussell J, Hassan F, Henry N, Pocoski J, Law A, Filonenko A.Trussell J, et al.Contraception. 2014 May;89(5):451-9. doi: 10.1016/j.contraception.2013.10.019. Epub 2014 Jan 24.Contraception. 2014.PMID: 24576791Free PMC article.
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: trussell j.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.