Diseases of the respiratory system.
D004338:Drug Combinations; D004917:Erythromycin / Q000627:therapeutic use*; D005839:Gentamicins / Q000627:therapeutic use*; D006801:Humans; D011014:Pneumonia / Q000188:drug therapy* / Q000382:microbiology
D004338:Drug Combinations; D005839:Gentamicins; D004917:Erythromycin