Aguilera-Eguía, R.A., Castro-Arredondo, F.C., Campos-Carrión, P.F. and Ibacache-Palma, A. 2015. Folic acid supplementation with or without vitamin B12 to prevent cognitive decline in elderly subjects: critical analysis of literature. Spanish Journal of Human Nutrition and Dietetics. 19, 4 (Oct. 2015), 231–237. DOI:https://doi.org/10.14306/renhyd.19.4.166.