1. Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
2. Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
3. Graduate School of Capital Medical University, Beijing, China
4. Department of Pharmacy, China-Japan Friendship Hospital, Beijing, China