The primary end point was the estimated mean change from baseline through week 24 in the percent of predicted forced expiratoryvolume in 1 second (FEV1).
主要终点为自基线至24周的预测1秒钟用力呼气容积（FEV1）百分比的估计平均变化。
2
Objective: to evaluate the efficacy of low tidal volume one-lung ventilation plus positive end-expiratory pressure.