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Nguyen P, Nava-Ocampo A, Levy A, O'Connor DL, Einarson TR, Taddio A, Koren G.Nguyen P, et al. Among authors: koren g.BMC Pregnancy Childbirth. 2008 May 15;8:17. doi: 10.1186/1471-2393-8-17.BMC Pregnancy Childbirth. 2008.PMID: 18482454Free PMC article.Clinical Trial.