1. From the National Respiratory Medical Center, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University,
Guangzhou, China; and
2. From the National Respiratory Medical Center, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical
University, Guangzhou, China; and
3. Faculty of Health Sciences, University of Macau, Taipa, Macau, China