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1985年6月～1994年6月对87例难治性肺结核的病因进行调查，探讨防治措施，以减少难治性肺结核的发生。1对象和方法1·1调查对象我科10年来住院及门诊肺结核患者共1329例。病例选择标准：①病史在4年以上且有1年以上的化疗史；②化疗中痰菌持续阳性或暂时转阴后复转阳；③病灶无
From June 1985 to June 1994, the etiology of 87 cases of refractory pulmonary tuberculosis was investigated to explore the prevention and treatment measures to reduce the occurrence of refractory pulmonary tuberculosis. 1 Subjects and methods 1.1 The subjects of our department 10 years of hospital and outpatient TB patients a total of 1329 cases. Case selection criteria: ① history of more than 4 years and have a history of more than 1 year of chemotherapy; ② sputum in chemotherapy continued positive or temporarily negative after the turn of the sun; ③ lesions