[1] Sichuan Univ, Dept Resp Dis, West China Hosp, Chengdu, Sichuan, Peoples R China
[2] Guangzhou Med Univ, State Key Lab Resp Dis, Affiliated Hosp 1, Guangzhou, Peoples R China
[3] Beijing Novartis Pharma Co Ltd, Beijing, Peoples R China
[4] Novartis Pharma AG, Basel, Switzerland
[5] Novartis Pharmaceut, E Hanover, NJ USA
[6] Novartis Business Serv PLS, Petaling Jaya, Malaysia