title: Synthesis of vitamin D5: its biological activity relative to vitamins D3 and D2.
mesh_terms: D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D001842:Bone and Bones / Q000187:drug effects / Q000378:metabolism; D002118:Calcium / Q000378:metabolism; D002762:Cholecalciferol / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004872:Ergocalciferols / Q000494:pharmacology*; D007408:Intestinal Absorption / Q000187:drug effects; D008297:Male; D051381:Rats; D012855:Sitosterols / Q000138:chemical synthesis* / Q000494:pharmacology; D014808:Vitamin D Deficiency / Q000378:metabolism
chemical_list: D004872:Ergocalciferols; D012855:Sitosterols; D002762:Cholecalciferol; D002118:Calcium