title: Response.
authors.affiliation: State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
authors.forename: Kefang
authors.initials: K
authors.lastname: Lai
authors.affiliation: State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
authors.forename: Ruchong
authors.initials: R
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. Electronic address: nanshan@vip.163.com.
authors.forename: Nanshan
authors.initials: N
authors.lastname: Zhong
mesh_terms: D003371:Cough / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male