title: Contributions to the study of bacterial penicillinases.
mesh_terms: D001407:Bacillus / Q000494:pharmacology*; D010405:Penicillinase / Q000378:metabolism*; D010406:Penicillins / Q000494:pharmacology*
chemical_list: D010406:Penicillins; D010405:Penicillinase
keywords: BACILLUS/pharmacology; PENICILLIN/pharmacology; PENICILLINACE/metabolism