title: Legionnaires' disease.
mesh_terms: D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis* / Q000188:drug therapy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009864:Ontario; D010406:Penicillins / Q000627:therapeutic use
chemical_list: D010406:Penicillins