title: A study of the origin of vitamin-D from 7-dehydrocholesterol in fish.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002762:Cholecalciferol / Q000378:metabolism; D002784:Cholesterol / Q000378:metabolism*; D002845:Chromatography; D002849:Chromatography, Gas; D005399:Fishes / Q000378:metabolism*; D014807:Vitamin D / Q000378:metabolism*
chemical_list: D002247:Carbon Isotopes; D014807:Vitamin D; D002762:Cholecalciferol; D002784:Cholesterol