Objectives:To investigate the clinical value of impulse oscillometry(IOS) in bronchial challenge test.

目的：探讨脉冲振荡法在支气管激发试验中的应用价值。

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Methods Routine lung function and impulse oscillometry(IOS) were performed on 24 OSAHS patients(OSAHS group) and 12 normal subjects(control group).

方法对2 4例OSAHS患者（OSAHS组）和12名正常人（对照组）进行常规肺功能及脉冲强迫振荡（IOS）检测。

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Methods Routine lung function and impulse oscillometry(IOS) were performed on 24 OSAHS patients(OSAHS group) and 12 normal subjects(control group).

方法对2 4例OSAHS患者（OSAHS组）和12名正常人（对照组）进行常规肺功能及脉冲强迫振荡（IOS）检测。

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