title: Clinical experience with hetacillin.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000667:Ampicillin / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D010406:Penicillins / Q000627:therapeutic use*
chemical_list: D010406:Penicillins; D000667:Ampicillin