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Risk Factors for Preterm Birth in an International Prospective Cohort of Nulliparous Women
Dekker GA,
Lee SY,
North RA,
McCowan LM,
Simpson NAB,
et al.
(2012)
Risk Factors for Preterm Birth in an International Prospective Cohort of Nulliparous Women.
PLOS ONE 7(7): e39154.
https://doi.org/10.1371/journal.pone.0039154