The therapeutic effect and the variations of forced vital capacity(FVC),forced expiratory volume(FEV 1),and vital capacity(VC) were observed before and after therapy.

• 并观察两组疗效及治疗前后用力肺活量 (FVC) ,1秒钟用力呼气量 (FEV1)和肺活量 (VC)的变化。