1. Peking University First Hospital, Beijing 100034, China
2. Shandong Provincial Hospital, Jinan 250021, China
3. Guangdong General Hospital, Guangzhou 510008, China
4. The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
5. The First Hospital, Shanxi Medical University, Taiyuan 030001, China
6. Xiangya Hospital, Central South University, Changsha 410008, China
7. General Hospital of PLA, Beijing 100853, China
8. The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
9. Guizhou Provincial People’s Hospital, Guiyang 550002, China
10. Jiangxi Provincial Children’s Hospital, Nanchang 330006, China
11. Fourth Hospital of Hebei Medical University, Shijiazhuang 050019, China
12. Jiangsu Province Hospital, Nanjing 210029, China
13. Peking University People’s Hospital, Beijing 100044, China
14. The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
15. Inner Mongolia People’s Hospital, Hohhot 010017, China
16. Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China