title: Estimation of biopotency and isomerization of vitamin A in livers of four species.
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D004355:Drug Stability; D007536:Isomerism; D008099:Liver / Q000378:metabolism*; D012756:Sheep; D013053:Spectrophotometry; D013552:Swine; D013696:Temperature; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D014801:Vitamin A