title: Determination of 25-hydroxycholecalciferol by combined thin layer and gas chromatography.
mesh_terms: D000818:Animals; D002645:Chickens; D002762:Cholecalciferol / Q000032:analysis; D002784:Cholesterol / Q000032:analysis; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004872:Ergocalciferols / Q000032:analysis; D005260:Female; D006887:Hydroxycholecalciferols / Q000032:analysis* / Q000097:blood; D008722:Methods; D014801:Vitamin A / Q000032:analysis
chemical_list: D004872:Ergocalciferols; D006887:Hydroxycholecalciferols; D014801:Vitamin A; D002762:Cholecalciferol; D002784:Cholesterol