title: [Prevalence of ampicillin-resistant strains and mechanism of ampicillin resistance in Haemophilus influenzae isolated from children].
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D002648:Child; D006193:Haemophilus influenzae / Q000187:drug effects* / Q000201:enzymology; D006801:Humans; D010403:Penicillin Resistance; D010957:Plasmids; D001618:beta-Lactamases / Q000378:metabolism
chemical_list: D000667:Ampicillin; D001618:beta-Lactamases