Xinyi Center for Disease Control and Prevention, Xuzhou, Jiangsu, China
Songtao Miao Autonomous County Center for Disease Control and Prevention, Tongren, Guizhou, China
Yuping Dong Autonomous County Center for Disease Control and Prevention, Tongren, Guizhou, China
Pei County Center for Disease Control and Prevention, Xuzhou, Jiangsu, China
Xiangya Hospital Central South University, Changsha, China
Sichuan Center for Disease Control and Prevention, Chengdu, China
Guizhou Center for Disease Control and Prevention, Guiyang, China
Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China
Shanxi Provincial Center for Disease Control and Prevention, Taiyuan, China
Queen Mary Hospital, Hong Kong, Hong Kong
You County Center for Disease Control and Prevention, Zhuzhou, Hunan, China
Linli County Center for Disease Control and Prevention, Changde, Hunan, China
Changning Center for Disease Control and Prevention, Changning, Hunan, China
Shulan (hangzhou) Hospital, Hangzhou, Zhejiang, China
Nan'an Center for Disease Control and Prevention, Quanzhou, Fujian, China
Songtao Miao Autonomous County Center for Disease Control and Prevention, Tongren, Guizhou, China
You County Center for Disease Control and Prevention, Zhuzhou, Hunan, China
Zhejiang provincial center for disease control and prevention, Hangzhou, Zhejiang, China
Yong'an Center for Disease Control and Prevention, Sanming, Fujian, China
Songtao Miao Autonomous County Center for Disease Control and Prevention, Tongren, Guizhou, China
Linli County Center for Disease Control and Prevention, Changde, Hunan, China