title: Antipenicillinase in the serum of dairy cows.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis*; D002417:Cattle / Q000276:immunology*; D005260:Female; D008414:Mastitis, Bovine / Q000188:drug therapy / Q000276:immunology; D010405:Penicillinase / Q000276:immunology*; D001618:beta-Lactamases / Q000276:immunology*
chemical_list: D000906:Antibodies; D010405:Penicillinase; D001618:beta-Lactamases