4SMITHELLS R W,SHEPPEARD S,SCHORAH C J,et al.Possible prevention of neural tube defects by periconceptional viamin supplementation[J].Lancet,1980,1:339-340. 被引量：1
5MRC Vitamin Study Research Group.Prevention of neural tube defects:results of the Medical Research Council Vitamin Study[J].Lancet,1991,338:131-137. 被引量：1
6CZEIZEL A E,DUDAS I.Prevention of the first occurrence of neural tube defects by periconceptional vitamin supplementation[J].N Engl J Med,1992,327:1832-1835. 被引量：1
7李竹,RobertJ Berry,李松,J David Erickson,王红,Cynthia A Moore,赵平,Joseph Mulinare,洪世欣,Lee-Yang C Wong,呼和牧人,Jacqueline Gindler,郝玲,Adolfo Correa,朱慧萍,Elaine Gunter.中国妇女妊娠前后单纯服用叶酸对神经管畸形的预防效果[J].中华医学杂志,2000,80(7):493-498. 被引量：185
