title: [The effect of chemotherapy for originally treated cavitary tuberculosis patients with positive sputum observed for two years].
mesh_terms: D000328:Adult; D000636:Aminosalicylic Acids / Q000627:therapeutic use; D000995:Antitubercular Agents / Q000627:therapeutic use*; D006801:Humans
chemical_list: D000636:Aminosalicylic Acids; D000995:Antitubercular Agents