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- Obstetrics and Gynaecology
Czeizel, A. E., Puhó, E. H.
, Langmar, Z., Ács, N., & Bánhidy, F.
(2010). Possible association of folic acid supplementation during pregnancy with reduction of preterm birth: A population-based study
. Obstetrical and Gynecological Survey
(5), 292-294. https://doi.org/10.1097/OGX.0b013e3181e39b03