[Tian, Heshen; Zhu, Liming; Liu, Guoyu; Hu, Ruicheng; Dai, Aiguo; Jiang, Yongliang; Ji, Lianzhi; Liu, Lei; Wang, Ruiwen; Wu, Ying; Li, Linwei; Fang, Yanyan; Yang, Chulan] Hunan Normal Univ, Affiliated Hosp 1, Hunan Prov Peoples Hosp, Dept Resp Med, Changsha 410016, Hunan, Peoples R China.
[Tian, Heshen; Zhu, Liming; Liu, Guoyu; Hu, Ruicheng; Dai, Aiguo; Jiang, Yongliang; Ji, Lianzhi; Liu, Lei; Wang, Ruiwen; Wu, Ying; Li, Linwei; Fang, Yanyan; Yang, Chulan] Hunan Normal Univ, Affiliated Hosp 1, Hunan Prov Peoples Hosp, Dept Geriatr, Changsha 410016, Hunan, Peoples R China.
[Dai, Aiguo] Hunan Univ Chinese Med, Med Sch, Dept Resp Dis, Changsha 410208, Hunan, Peoples R China.
[Tian, Heshen] Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou 510120, Guangdong, Peoples R China.