[1] Natl Ctr Resp Med, Beijing, Peoples R China
[2] State Key Lab Resp Hlth & Multimorbid, Beijing, Peoples R China
[3] Natl Clin Res Ctr Resp Dis, Beijing, Peoples R China
[4] Chinese Acad Med Sci, Inst Resp Med, Beijing, Peoples R China
[5] China Japan Friendship Hosp, Ctr Resp Med, Dept Pulm & Crit Care Med, Beijing, Peoples R China
[6] Capital Med Univ, Beijing Anzhen Hosp, Dept Pulm & Crit Care Med, Beijing, Peoples R China
[7] Chongqing Med Univ, Affiliated Hosp 1, Dept Resp & Crit Care Med, Chongqing, Peoples R China
[8] Chinese Acad Med Sci & Peking Union Med Coll, China Japan Friendship Hosp, Beijing, Peoples R China
[9] Beijing Univ Chinese Med, Beijing, Peoples R China
[10] Capital Med Univ, China Japan Friendship Hosp, Beijing, Peoples R China
[11] Shanxi Med Univ, Clin Med Coll 1, Taiyuan, Peoples R China
[12] Harbin Med Univ, Harbin, Peoples R China
[13] Capital Med Univ, Beijing Chao Yang Hosp, Dept Resp & Crit Care Med, Beijing, Peoples R China
[14] Capital Med Univ, Beijing Chao Yang Hosp, Beijing Key Lab Resp & Pulm Circulat Disorders, Beijing, Peoples R China
[15] Capital Med Univ, Beijing Chao Yang Hosp, Beijing Inst Resp Med, Beijing, Peoples R China
[16] Capital Med Univ, Dept Resp Dis, Beijing, Peoples R China
[17] Chinese Acad Med Sci, Inst Basic Med Sci, Dept Physiol, State Key Lab Resp Hlth & Multimorbid, Beijing, Peoples R China
[18] Peking Union Med Coll, Sch Basic Med, Beijing, Peoples R China