Duyff RL. The American Dietetic Association's Complete Food & Nutrition Guide. 3rd ed. Hoboken, NJ: John Wiley and Sons, Inc.; 2006.
Folate. Office of Dietary Supplements, National Institutes of Health website. Available at: http://ods.od.nih.gov/factsheets/Folate-HealthProfessional. Updated December 14, 2012. Accessed March 6, 2014.
Folate, DFE (µg) content of selected foods per common measure, sorted by nutrient content. USDA national nutritional database for standard reference, release 25. US Department of Agriculture website. Available at: https://www.ars.usda.gov/SP2UserFiles/Place/12354500/Data/SR25/nutrlist/sr25w435.pdf. Accessed March 6, 2014.
Folate deficiency. EBSCO DynaMed website. Available at: http://ebscohost.com/dynamed. Updated January 16, 2013. Accessed March 6, 2014.
Folic acid. EBSCO DynaMed website. Available at: http://ebscohost.com/dynamed. Updated October 28, 2013. Accessed March 6, 2014.
Garrison R, Somer E. The Nutrition Desk Reference. New Canaan, CT: Keats Publishing; 1995.