Miller, J. W., Garrod, M. G., Allen, L. H., Haan, M. N., & Green, R. (2009). Metabolic evidence of vitamin B-12 deficiency, including high homocysteine and methylmalonic acid and low holotranscobalamin, is more pronounced in older adults with elevated plasma folate(1)(2)(3). American Society for Nutrition.

Miller, Joshua W., Marjorie G. Garrod, Lindsay H. Allen, Mary N. Haan, ja Ralph Green. Metabolic Evidence of Vitamin B-12 Deficiency, Including High Homocysteine and Methylmalonic Acid and Low Holotranscobalamin, Is More Pronounced in Older Adults With Elevated Plasma Folate(1)(2)(3). American Society for Nutrition, 2009.

Miller, Joshua W., et al. Metabolic Evidence of Vitamin B-12 Deficiency, Including High Homocysteine and Methylmalonic Acid and Low Holotranscobalamin, Is More Pronounced in Older Adults With Elevated Plasma Folate(1)(2)(3). American Society for Nutrition, 2009.