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3. Neural-tube defects and vitamins: the need for a randomized clinical trial. Wald NJ; Polani PE Br J Obstet Gynaecol; 1984 Jun; 91(6):516-23. PubMed ID: 6375715 [TBL] [Abstract][Full Text] [Related]
11. Vitamin deficiencies and neural-tube defects: human and animal studies. Cockroft DL Hum Reprod; 1991 Jan; 6(1):148-57. PubMed ID: 1874949 [TBL] [Abstract][Full Text] [Related]
12. Vitamins and neural-tube defects. Sharpe R Lancet; 1980 Jun; 1(8181):1301. PubMed ID: 6104101 [No Abstract] [Full Text] [Related]
13. Periconceptional intake of vitamin A among women and risk of neural tube defect-affected pregnancies. Shaw GM; Velie EM; Schaffer D; Lammer EJ Teratology; 1997 Feb; 55(2):132-3. PubMed ID: 9143093 [No Abstract] [Full Text] [Related]