[1]Natl Ctr Resp Med, State Key Lab Resp Hlth & Multimorbid, Natl Clin Res Ctr Resp Dis, Chinese Acad Med Sci, Inst Resp Med, China Japan Friendship Hosp, Ctr Resp Med, Dept Pulm & Crit Care Med, Beijing 100029, Peoples R China
[2]Chinese Acad Med Sci, Peking Union Med Coll, Inst Basic Med Sci, State Key Lab Resp Hlth & Multimorbid, Beijing 100730, Peoples R China
[3]Cent South Univ, Xiangya Hosp, Dept Resp Med, Changsha 410008, Hunan, Peoples R China.
[4]China Japan Friendship Hosp, Dept Thorac Surg, Beijing 100029, Peoples R China.
[5]China Japan Friendship Hosp, Dept Radiol, Beijing 100029, Peoples R China.
[6]Chinese Acad Med Sci & Peking Union Med Coll, Sch Populat Med & Publ Hlth, Beijing 100730, Peoples R China.