Jacques, P. F., Selhub, J., & Bostom, A. G. (1999). The effect of folic acid fortification on plasma folate and total homocysteine concentrations. New England Journal of Medicine, 340(19), 1449-1454. https://doi.org/10.1056/NEJM199905133401901
Chicago Style (17th ed.) CitationJacques, Paul F., Jacob Selhub, and Andrew G. Bostom. "The Effect of Folic Acid Fortification on Plasma Folate and Total Homocysteine Concentrations." New England Journal of Medicine 340, no. 19 (1999): 1449-1454. https://doi.org/10.1056/NEJM199905133401901.
MLA (8th ed.) CitationJacques, Paul F., et al. "The Effect of Folic Acid Fortification on Plasma Folate and Total Homocysteine Concentrations." New England Journal of Medicine, vol. 340, no. 19, 1999, pp. 1449-1454, https://doi.org/10.1056/NEJM199905133401901.
Visit our Citation Styles guide for help on properly citing sources.