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Showing articles 0 to 3 of 3 Filter Applied: vitamin,multiple (Click to remove) Periconceptional Folic Acid Exposure and Risk of Occurrent Neural Tube Defects JAMA 269:1257-1261, 12921993., Werler,M.M.,et al, 1993 Prevention of Congenital Abnormalities by Periconceptional Multivitamin Supplementation BMJ 306:1645-1648, Czeizel,A.E., 1993 Prevention of First Occur of Neural-Tube Defects by Periconceptional Vitamin Suppl NEJM 327:1832-1835, 18751992., Czeizel,A.E.&Dudas,I., 1992 Showing articles 0 to 3 of 3