Folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study
叶酸补充剂、孕期膳食叶酸摄入量与自发性早产风险：一项前瞻性观察队列研究
期刊:BMC Pregnancy and Childbirth
影响因子:2.7
doi:10.1186/s12884-014-0375-1
Sengpiel, Verena; Bacelis, Jonas; Myhre, Ronny; Myking, Solveig; Devold Pay, Aase Serine; Haugen, Margaretha; Brantsæter, Anne-Lise; Meltzer, Helle Margrete; Nilsen, Roy Miodini; Magnus, Per; Vollset, Stein Emil; Nilsson, Staffan; Jacobsson, Bo
