http://well.blogs.nytimes.com/2014/04/01/low-vitamin-d-levels-linked-to-disease-in-two-big-studies/?_php=true&_type=blogs&action=click&contentCollection=N.Y.+%2F+Region&module=MostEmailed&version=Full®ion=Marginalia&src=me&pgtype=article&_r=0
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