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The association between vitamin D and cognition: a systematic review.
van der Schaft J, Koek HL, Dijkstra E, Verhaar HJ, van der Schouw YT, Emmelot-Vonk MH. van der Schaft J, et al. Ageing Res Rev. 2013 Sep;12(4):1013-23. doi: 10.1016/j.arr.2013.05.004. Epub 2013 May 29. Ageing Res Rev. 2013. PMID: 23727408 Review.
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