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脉冲震荡法 (IOS)是近年引入我国的肺功能检测方法，可用于慢性阻塞性肺病的早期诊断 [1]，是否能发现吸烟造成的早期肺功能改变，现进行一下探讨。 1 资料与方法 1.1 资料 测试对象均为男性，无长期咳喘史，胸片或 CT未发现肺内疾患。其中，不吸烟者 26例，吸烟指数 (每日平均
Pulse Oscillatory (IOS) is a pulmonary function test that has been introduced into our country in recent years. It can be used in the early diagnosis of chronic obstructive pulmonary disease [1] and whether it can detect the early changes of lung function caused by smoking. 1 Materials and Methods 1.1 Materials Subjects were men, no long-term cough history, chest or CT found no lung disease. Among them, non-smoker in 26 cases, smoking index (daily average