DOI:
10.1055/s-00000009
American Journal of Perinatology
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References
Center for Disease Control.
Smoking and tobacco use. Fast facts and fact sheets.
February 4, 2019. Accessed June 25, 2019 at:
https://www.cdc.gov/tobacco/data_statistics/fact_sheets/adult_data/cig_smoking/index.htm
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