Neural-Tube Defects
NEJM 341:1509-1519,1485, Botto,L.D.,et al, 1999
The Infant with Anencephaly
Med Task Force on Anencephaly, NEJM 322:669-6741990., , 1990
Reduction in Neural-Tube Defects After Folic Acid Fortification in Canada
NEJM 357:135-142, De Wals,P.,et al, 2007
Impact of Folic Acid Fortification of the US Food Supply on the Occurrence of Neural Tube Defects
JAMA 285:2981-2986,3022, Honein,M.A.,et al, 2001
Periconceptional Folic Acid Exposure and Risk of Occurrent Neural Tube Defects
JAMA 269:1257-1261, 12921993., Werler,M.M.,et al, 1993
The Changing Epidemiology of Neural Tube Defects, United STates, 1968-1989
Am J Dis Child 146:857-861, Yen,I.H.,et al, 1992