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No significant differences were shown for pre- and post-clamp pulmonary function tests.
使用钳夹技术前后的肺功能测试没有显著差异。
Objective: It was designed to evaluate the diagnostic value of selective pulmonary function tests (PFT) for the asthma in the aged.
目的：探讨肺功能试验在老年支气管哮喘（老年哮喘）诊断中的价值。
Methods Negative expiratory pressure technique was performed in 13 special COPD patients who did not accomplish routine pulmonary function tests.
方法采用呼气负压技术检测13例不能完成常规肺功能检查的COPD患者呼气流速受限。
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