title: In vitro penicillin aminolysis: application to a radioimmunoassay of trace amounts of penicillin.
mesh_terms: D000818:Animals; D008832:Microchemistry / Q000379:methods; D010400:Penicillin G / Q000032:analysis*; D011817:Rabbits; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D010400:Penicillin G