Folate and vitamin B-12 status in relation to anemia, macrocytosis, and cognitive impairment in older Americans in the age of folic acid fortification.
Am J Clin Nutr. 2007 Jan;85(1):193-200. doi: 10.1093/ajcn/85.1.193.
Am J Clin Nutr. 2007.
PMID: 17209196
Free PMC article.