title: Combination therapy.
mesh_terms: D006801:Humans; D008169:Lung Abscess / Q000188:drug therapy*; D010406:Penicillins / Q000008:administration & dosage*; D013752:Tetracycline / Q000008:administration & dosage*
chemical_list: D010406:Penicillins; D013752:Tetracycline