title: Observations on Legionnaires' pneumonia.
mesh_terms: D000328:Adult; D000368:Aged; D004917:Erythromycin / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis / Q000188:drug therapy; D008875:Middle Aged
chemical_list: D004917:Erythromycin