Retraction: "Folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study"
BMC Pregnancy Childbirth
.
2014 Jul 3:14:202.
doi: 10.1186/1471-2393-14-202.
Authors
Verena Sengpiel
,
Bo Jacobsson
PMID:
24993670
PMCID:
PMC4080777
DOI:
10.1186/1471-2393-14-202
No abstract available
Publication types
Retraction of Publication