Littlejohns TJ, Henley WE, Lang IA, Annweiler C, Beauchet O, Chaves PHM, Fried L, Kestenbaum BR, Kuller LH, Langa KM, et al. Vitamin D and the risk of dementia and Alzheimer disease. Neurology. 2014  ;83(10):920-8.

Ku?ma E, Soni M, Littlejohns TJ, Ranson JM, van Schoor NM, Deeg DJH, Comijs H, Chaves PHM, Kestenbaum BR, Kuller LH, et al. Vitamin D and Memory Decline: Two Population-Based Prospective Studies. J Alzheimers Dis. 2016  ;50(4):1099-108.

Littlejohns TJ, Kos K, Henley WE, Lang IA, Annweiler C, Beauchet O, Chaves PHM, Kestenbaum BR, Kuller LH, Langa KM, et al. Vitamin D and Risk of Neuroimaging Abnormalities. PLoS One. 2016  ;11(5):e0154896.