Ampicillin 'failure' in H. influenzae meningitis.
D000667:Ampicillin / Q000008:administration & dosage / Q000627:therapeutic use*; D002701:Chloramphenicol / Q000627:therapeutic use; D006193:Haemophilus influenzae; D006801:Humans; D007275:Injections, Intravenous; D008583:Meningitis, Haemophilus / Q000188:drug therapy*; D010403:Penicillin Resistance
D002701:Chloramphenicol; D000667:Ampicillin