title: The use of penicillinase in cultures of body fluids obtained from patients under treatment with penicillin.
authors.forename: H F
authors.initials: HF
authors.lastname: DOWLING
authors.forename: H L
authors.initials: HL
authors.lastname: HIRSH
mesh_terms: D001826:Body Fluids; D010405:Penicillinase; D010406:Penicillins / Q000628:therapy*
chemical_list: D010406:Penicillins; D010405:Penicillinase