1. Proposed rule — food labeling: health claims and label statements; folate and neural tube defects;Fed Reg,1993
2. Neural tube defects;Lemire;JAMA,1988
3. Panel recommends adding vitamin to food to prevent birth defect;Kolata;New York Times,1992
4. The epidemiology of neural tube defects: a review of dietary intake and related factors as etiologic agents;Slattery;Am J Epidemiol,1991
5. Recommendations for the use of folic acid to reduce the number of cases of spina bifida and other neural tube defects;MMWR,1992