Czeizel AE & Dudas I (1992) Prevention of the first occurrence of neural-tube defects by periconceptional vitamin supplementation. N Engl J Med
MRC Vitamin Study Research Group (1991) Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group. Lancet
Centers for Disease Control and Prevention (1992) Recommendations for the use of folic acid to reduce the number of cases of spina bifida and other neural tube defects. MMWR Recomm Rep
Food and Drug Administration (1993) Food labeling: health claims and label statement; folate and neural tube defects. Federal Register
Food and Drug Administration (1996) Food standards: amendment of standards of identity for enriched grain products to require addition of folic acid, Final Rule. 21 CFR Parts 136, 137, and 139. Federal Register
Institute of Medicine (1998) DRI Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: National Academy Press.
Centers for Disease Control and Prevention (2004) Spina bifida and anencephaly before and after folic acid mandate – United States, 1995–1996 and 1999–2000. MMWR Morbid Mortal Wkly Rep
Health Canada (1996) Food and drugs regulations – amendment SOR/96-527. Canada Gazette Part II
Chen LT & Rivera MA (2004) The Costa Rican experience: reduction of neural tube defects following food fortification programs. Nutr Rev
62, 6 Pt 2, S40–S43.
Hertrampf E & Cortes F (2004) Folic acid fortification of wheat flour: Chile. Nutr Rev
62, 6 Pt 2, S44–S48.
Sayed AR, Bourne D, Pattinson R
et al. (2008) Decline in the prevalence of neural tube defects following folic acid fortification and its cost–benefit in South Africa. Birth Defects Res A Clin Mol Teratol
Food Standards Australia New Zealand (2006) Final Assessment Report, Proposal P295, Consideration for Mandatory Fortification with Folic Acid. Canberra: FSANZ.
Raper N, Perloff B, Ingwersen L
et al. (2004) An overview of USDA's dietary intake data system. J Food Compost Anal
Carriquiry AL (2003) Estimation of usual intake distributions of nutrients and foods. J Nutr
133, issue 2, 601S–608S.
Food and Drug Administration (1996) Food additives permitted for direct addition to food for human consumption; folic acid (folacin), final rule. Federal Register
Nusser S, Carriquiry A, Dodd KW
et al. (1996) A semiparametric transformation approach to estimating usual nutrient intake distributions. J Am Stat Assoc
Crane NT, Wilson DB, Cook DA
et al. (1995) Evaluating food fortification options: general principles revisited with folic acid. Am J Public Health
US Preventive Services Task Force (2009) Folic acid for the prevention of neural tube defects: US Preventive Services Task Force recommendation statement. Ann Intern Med
Tinker SC, Cogswell ME, Devine O
et al. (2010) Folic acid intake among US women aged 15–44 years, National Health and Nutrition Examination Survey, 2003–2006. Am J Prev Med
Yang Q, Cogswell ME, Hamner HC
et al. (2010) Folic acid source, usual intake, and folate and vitamin B-12 status in US adults: National Health and Nutrition Examination Survey (NHANES) 2003–2006. Am J Clin Nutr
Hamner HC, Mulinare J, Cogswell ME
et al. (2009) Predicted contribution of folic acid fortification of corn masa flour to the usual folic acid intake for the US population: National Health and Nutrition Examination Survey 2001–2004. Am J Clin Nutr
World Health Organization, Food and Agriculture Organization of the United Nations, UNICEF, GAIN, Micronutrient Initiative & Flour Fortification Initiative (2009) Recommendations on Wheat and Maize Flour Fortification. Meeting Report: Interim Consensus Statement. Geneva: WHO.
World Health Organization (2009) WHO Meeting on Estimating the Appropriate Levels of Vitamins and Minerals for Food Fortification Programmes: The WHO Intake Monitoring, Assessment and Planning Program (IMAPP). Geneva: WHO.
US Department of Agriculture (2009) USDA Dietary Supplement Ingredient Database; Release 1. Beltsville, MD: USDA.
Centers for Disease Control and Prevention (1994) Daily dietary fat and total food-energy intakes – Third National Health and Nutrition Examination Survey, Phase 1, 1988–91. MMWR Weekly Rep
Moshfegh AJ, Rhodes DG, Baer DJ
et al. (2008) The US Department of Agriculture Automated Mulitple-Pass Method reduces bias in the collection of energy intakes. Am J Clin Nutr