Chloramphenicol-resistant haemophilus influenzae.
D002701:Chloramphenicol / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D006193:Haemophilus influenzae / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000382:microbiology
D002701:Chloramphenicol