Negri, M C In vitro selective antibiotic concentrations of beta-lactams for penicillin-resistant Streptococcus pneumoniae populations. [electronic resource] - Antimicrobial agents and chemotherapy Jan 1994 - 122-5 p. digital Publication Type: Journal Article ISSN: 0066-4804 Standard No.: 10.1128/AAC.38.1.122 doi Subjects--Topical Terms: Amoxicillin--pharmacologyAnti-Bacterial Agents--pharmacologyCefiximeCefotaxime--analogs & derivativesCefuroxime--pharmacologyCulture MediaMicrobial Sensitivity TestsModels, BiologicalPenicillin ResistanceStreptococcus pneumoniae--drug effects