title: Finding the appropriate referent for vitamin D.
authors: Robert P
authors: RP
authors: Heaney
mesh_terms: D006801:Humans; D018673:Nutrition Policy; D009751:Nutritional Requirements; D012015:Reference Standards; D012016:Reference Values; D013472:Sunlight; D014807:Vitamin D / Q000008:administration & dosage* / Q000096:biosynthesis*
chemical_list: D014807:Vitamin D