title: Heterogeneity of the Fourth International Standard for insulin by gel-chromatography on sephadex.
mesh_terms: D000818:Animals; D002417:Cattle; D002850:Chromatography, Gel; D007328:Insulin / Q000032:analysis / Q000302:isolation & purification / Q000592:standards*; D013552:Swine
chemical_list: D007328:Insulin