title: Hydroxylated vitamin D analogues.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002645:Chickens; D002762:Cholecalciferol / Q000138:chemical synthesis*; D004872:Ergocalciferols / Q000494:pharmacology; D010777:Photochemistry; D012279:Rickets / Q000188:drug therapy; D013057:Spectrum Analysis; D014466:Ultraviolet Rays; D014801:Vitamin A / Q000494:pharmacology; D014807:Vitamin D / Q000138:chemical synthesis*
chemical_list: D004872:Ergocalciferols; D014801:Vitamin A; D014807:Vitamin D; D002762:Cholecalciferol