[1] Guangzhou Med Univ, Dept Allergy & Clin Immunol, Guangzhou Inst Resp Hlth,Affiliated Hosp 1, State Key Lab Resp Dis,Natl Clin Res Ctr Resp Dis, Guangzhou, Peoples R China
[2] Guangzhou Med Univ, Affiliated Hosp 1, Dept Endocrinol & Metab, Guangzhou, Peoples R China
[3] Southern Univ Sci & Technol, Jinan Univ, Affiliated Hosp 1, Clin Med Coll 2,Shenzhen Peoples Hosp,Dept Pulm &, Shenzhen, Peoples R China
[4] Sun Yat Sen Univ, Affiliated Hosp 1, Dept Obstet & Gynecol, Guangzhou, Peoples R China
[5] Zhejiang Univ, Dept Resp & Crit Care Med, Key Lab Resp Dis Zhejiang Prov, Affiliated Hosp 2,Sch Med, Hangzhou, Peoples R China
[6] Fudan Univ, Zhongshan Hosp, Dept Allergy, Shanghai, Peoples R China
[7] Chongqing Med Univ, Med Childrens Hosp, Natl Clin Res Ctr Child Hlth & Disorders, Minist Educ,Key Lab Child Dev & Disorders,Dept Res, Chongqing, Peoples R China
[8] Chongqing Med Univ, Natl Clin Res Ctr Child Hlth & Disorders, Dept Endocrinol & Genet Metab Dis, Childrens Hosp,Minist Educ,Key Lab Child Dev & Dis, Chongqing, Peoples R China
[9] China Japan Friendship Hosp, Natl Clin Res Ctr Resp Dis, Dept Pulm & Crit Care Med, Beijing, Peoples R China
[10] Sun Yat Sen Univ, Sun Yat Sen Mem Hosp, Dept Pediat, Guangzhou, Peoples R China
[11] Shanghai Jiao Tong Univ, Shanghai Ruijin Hosp, Sch Med, Dept Pulm & Crit Care Med, Shanghai, Peoples R China
[12] Gen Hosp Northern Theater Command, Dept Resp Med, Shenyang, Peoples R China
[13] Shanghai Jiao Tong Univ, Shanghai Gen Hosp, Sch Med, Dept Pulm & Crit Care Med, Shanghai, Peoples R China
[14] Southern Med Univ, Nanfang Hosp, Dept Endocrinol & Metab, Guangzhou, Peoples R China
[15] Capital Med Univ, Beijing Childrens Hosp, China Natl Clin Res Ctr Resp Dis, Natl Ctr Childrens Hlth,Resp Dept, Beijing, Peoples R China
[16] Southern Med Univ, Nanfang Hosp, Dept Resp & Crit Care Med, Chron Airways Dis Lab, Guangzhou, Peoples R China
[17] Guangzhou Med Univ, Affiliated Hosp 1, Natl Clin Res Ctr Resp Dis, State Key Lab Resp Dis,Guangzhou Inst Resp Hlth,De, 28 Qiaozhong Middle Rd, Guangzhou 510120, Peoples R China
[18] Southern Med Univ, Nanfang Hosp, Dept Resp & Crit Care Med, Chron Airways Dis Lab, 1838 Guangzhou Ave North, Guangzhou 510515, Peoples R China
[19] Capital Med Univ, Beijing Childrens Hosp, China Natl Clin Res Ctr Resp Dis, Natl Ctr Childrens Hlth,Resp Dept, 56,Li Shi Rd, Beijing 100045, Peoples R China