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Maternal cigarette smoking before and during pregnancy and the risk of preterm birth: A dose–response analysis of 25 million mother–infant pairs
Liu B,
Xu G,
Sun Y,
Qiu X,
Ryckman KK,
et al.
(2020)
Maternal cigarette smoking before and during pregnancy and the risk of preterm birth: A dose–response analysis of 25 million mother–infant pairs.
PLOS Medicine 17(8): e1003158.
https://doi.org/10.1371/journal.pmed.1003158