We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleVitamin D: criteria for safety and efficacy.AuthorsHeaney RPPublicationNutrition reviews, 2008, Vol 66, Issue 10 Suppl 2, pS178ISSN1753-4887Publication typearticleDOI10.1111/j.1753-4887.2008.00102.x