Vitamin D and risk of cognitive decline in elderly persons.
Llewellyn DJ, Lang IA, Langa KM, Muniz-Terrera G, Phillips CL, Cherubini A, Ferrucci L, Melzer D.
Llewellyn DJ, et al.
Arch Intern Med. 2010 Jul 12;170(13):1135-41. doi: 10.1001/archinternmed.2010.173.
Arch Intern Med. 2010.
PMID: 20625021
Free PMC article.
Clinical Trial.