title: Prevalence of ampicillin- and chloramphenicol-resistant strains of Haemophilus influenzae causing meningitis and bacteremia: national survey of hospital laboratories.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D002648:Child; D002675:Child, Preschool; D002701:Chloramphenicol / Q000494:pharmacology*; D006193:Haemophilus influenzae / Q000187:drug effects*; D006306:Health Surveys; D006801:Humans; D007223:Infant; D008583:Meningitis, Haemophilus / Q000209:etiology; D010403:Penicillin Resistance; D018805:Sepsis / Q000209:etiology
chemical_list: D002701:Chloramphenicol; D000667:Ampicillin