Retraction Note: “folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study”
Crossref DOI link: https://doi.org/10.1186/1471-2393-14-202
Published Online: 2014-07-03
Published Print: 2014-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Sengpiel, Verena
Bacelis, Jonas
Myhre, Ronny
Myking, Solveig
Pay, Aase Devold
Haugen, Margaretha
Brantsæter, Anne-Lise
Meltzer, Helle Margrete
Nilsen, Roy M
Magnus, Per
Vollset, Stein Emil
Nilsson, Staffan
Jacobsson, Bo
License valid from 2014-07-03