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Prevalence and patterns of cigarette smoking before and during early and late pregnancy according to maternal characteristics: the first national data based on the 2003 birth certificate revision, United States, 2016

Crossref DOI link: https://doi.org/10.1186/s12978-019-0807-5

Published Online: 2019-09-13

Published Print: 2019-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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