Folic acid supplementation and preterm birth: results from observational studies.
Elena MantovaniFrancesca FilippiniRenata BortolusMassimo FranchiPublished in: BioMed research international (2014)
The results from recent observational studies suggest a slight reduction of PTBs that is not consistent with the results from RCTs. Further research is needed to better understand the role of FA supplementation before and during pregnancy in PTB.