title: Metabolism of vitamin D3 in man.
mesh_terms: D002247:Carbon Isotopes; D002762:Cholecalciferol / Q000097:blood* / Q000378:metabolism; D006801:Humans; D007263:Infusions, Parenteral; D013997:Time Factors; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D002762:Cholecalciferol