目的探讨咳嗽变异型哮喘（CVA）肺功能气道弹性阻力和肺泡灌洗液（BALF）细胞学以及细胞因子变化的特征。
Objective To study the characteristics of airway elastic resistance and changes of cytologicals, cytokines in bronchoalveolar lavage fluid (BALF) in patients with cough variant asthma (CVA).
其机制主要是呼吸中枢的功能降低，肺和胸廓的弹性阻力、呼吸道的非弹性阻力增加所致。
The falling function of the respiratory centre, the elastic resistance of the lungs and thoracic cage, and the non-elastic resistance in the respiratory tract are responsible for the decline.
其机制主要是呼吸中枢的功能降低，肺和胸廓的弹性阻力、呼吸道的非弹性阻力增加所致。
The falling function of the respiratory centre, the elastic resistance of the lungs and thoracic cage, and the non-elastic resistance in the respiratory tract are responsible for the decline.
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