Vitamin D Insufficiency and Cognitive Function Trajectories in Older Adults: The Rancho Bernardo Study.

Laughlin GA, Kritz-Silverstein D, Bergstrom J, Reas ET, Jassal SK, Barrett-Connor E, McEvoy LK

J Alzheimers Dis. 2017; 58(3):871-883. PMID: 28505973. Abstract