Methods: 212 patients with MDR-TB were separated into three groups: the puncture group (69 patients), the bronchofiberscope group (69 patients) and the simple chemotherapy group (74 patients).

• 方法：将212例MDR-TB患者依治疗方法分为肺穿刺组（69例）、纤支镜组（69例）和常规组（74例）。