1. National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
2. Department of Thoracic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
3. Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
4. Hankou Hospital, Wuhan, China
5. Department of Intensive Care Unit, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
6. Jinyintan Hospital, Wuhan, China
7. Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
8. The First People Hospital of Foshan, Foshan, China
9. Nanhai Hospital, Foshan, China
10. Daye Hospital, Hubei, China
11. The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China