At each of the visits days 1,43(about 6 weeks)and 85(about 12 weeks),forced expiratory volume in one second(FEV_1),percentage of FEV_1 and predict value[FEV_1(%)],forced expiratory volume(FEV),FEV_1/FVC and IC were measured.

• 于研究第1天、第43天(约6周)、第85天(约12周)检测1秒钟用力呼气量(FEV1)、FEV1占预计值的百分比[FEV1(%25)]、用力呼气量(FVC)、FEV1/FVC、IC等指标。