title: Evidence for the biologically active form of cholecalciferol in the intestine.
mesh_terms: D000818:Animals; D001681:Biological Assay; D001692:Biological Transport / Q000187:drug effects; D002118:Calcium / Q000378:metabolism; D002127:Calcium Isotopes; D002247:Carbon Isotopes; D002645:Chickens; D002762:Cholecalciferol / Q000378:metabolism*; D002776:Cholestanes / Q000097:blood / Q000378:metabolism* / Q000494:pharmacology; D002845:Chromatography; D002875:Chromosomes / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism*; D008099:Liver / Q000378:metabolism; D008297:Male; D012279:Rickets / Q000378:metabolism; D013261:Sterols / Q000097:blood / Q000378:metabolism* / Q000494:pharmacology; D013268:Stimulation, Chemical; D013997:Time Factors; D014316:Tritium
chemical_list: D002127:Calcium Isotopes; D002247:Carbon Isotopes; D002776:Cholestanes; D013261:Sterols; D014316:Tritium; D002762:Cholecalciferol; D002118:Calcium