EJ, J., BR, H., K, Y., J, Q., XD, W., C, C., . . . RM, R. (2000). Relation among serum and tissue concentrations of lutein and zeaxanthin and macular pigment density. American Journal of Clinical Nutrition, 71(6), 1555. https://doi.org/10.1093/ajcn/71.6.1555
Chicago Style (17th ed.) CitationEJ, Johnson, Hammond BR, Yeum K, Qin J, Wang XD, Castaneda C, Snodderly DM, and Russell RM. "Relation Among Serum and Tissue Concentrations of Lutein and Zeaxanthin and Macular Pigment Density." American Journal of Clinical Nutrition 71, no. 6 (2000): 1555. https://doi.org/10.1093/ajcn/71.6.1555.
MLA (9th ed.) CitationEJ, Johnson, et al. "Relation Among Serum and Tissue Concentrations of Lutein and Zeaxanthin and Macular Pigment Density." American Journal of Clinical Nutrition, vol. 71, no. 6, 2000, p. 1555, https://doi.org/10.1093/ajcn/71.6.1555.