title: Ampicillin resistance in Haemophilus influenzae--test methods for the activity of acylureidopenicillins, cephamycins and new cephalosporins.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002511:Cephalosporins / Q000494:pharmacology*; D002513:Cephamycins / Q000494:pharmacology*; D006193:Haemophilus influenzae / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D009994:Osmolar Concentration; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D001618:beta-Lactamases / Q000032:analysis
chemical_list: D000900:Anti-Bacterial Agents; D002511:Cephalosporins; D002513:Cephamycins; D010406:Penicillins; D000667:Ampicillin; D001618:beta-Lactamases