1 State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
2 The First People's Hospital of Kunshan, Jiangsu University, Kunshan, China.
3 International College of Education, Guangzhou Medical University, Guangzhou, China.
4 R. Chen and K. Lai contributed equally to this article as lead authors and supervised the work.
5 State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China chen_rch@163.com.