1. Department of Clinical Laboratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No. 507, Zhengmin Road, Yangpu District, Shanghai 200433, P.R. China
2. Department of Pulmonary Function Test, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No. 507, Zhengmin Road, Yangpu District, Shanghai, 200433, P.R. China