1. Department of Pulmonary and Critical Care Medicine, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Center of Respiratory Medicine, China–Japan Friendship Hospital, Beijing, People’s Republic of China
2. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
3. Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, People’s Republic of China
4. THU-PKU Joint Center for Life Sciences, Tsinghua University, Beijing, People’s Republic of China
5. Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, People’s Republic of China
6. Department of Pulmonary and Critical Care Medicine, Clinical Center for Pulmonary Infections, Capital Medical University, Beijing, People’s Republic of China
7. National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China