Farrar, W E Use of penicillinase-resistant penicillins to increase the susceptibility of gram-negative bacteria to antibiotics. [electronic resource] - Annals of internal medicine Oct 1967 - 733-43 p. digital Publication Type: Journal Article ISSN: 0003-4819 Standard No.: 10.7326/0003-4819-67-4-733 doi Subjects--Topical Terms: Ampicillin--pharmacologyAnti-Bacterial Agents--pharmacologyBacteria--drug effectsCephalothin--pharmacologyDrug SynergismEnterobacter--drug effectsEscherichia coli--drug effectsKlebsiella--drug effectsMethicillin--pharmacologyNafcillin--pharmacologyOxacillin--pharmacologyPenicillin G--pharmacologyPenicillin ResistanceProteus--drug effectsPseudomonas--drug effectsbeta-Lactamase Inhibitors