title: Combined action of beta-lactamase-resistant and beta-lactamase-susceptible penicillins on 20 strains of Pseudomonas aeruginosa.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D004357:Drug Synergism; D008712:Methicillin / Q000494:pharmacology; D010068:Oxacillin / Q000494:pharmacology; D010400:Penicillin G / Q000494:pharmacology; D010406:Penicillins / Q000494:pharmacology*; D011550:Pseudomonas aeruginosa / Q000187:drug effects*; D065093:beta-Lactamase Inhibitors
chemical_list: D010406:Penicillins; D065093:beta-Lactamase Inhibitors; D000667:Ampicillin; D010400:Penicillin G; D008712:Methicillin; D010068:Oxacillin