Peking University Hospital

Shenzhen Nanshan People's Hospital

The Fifth Affiliated Hospital of Sun Yat-sen University

Union Hospital Shenzhen

Zhaoqing First People's Hospital

Guangxi Zhuang Autonomous Region Disease Prevention and Control

Shenzhen Shekou Hospital

Guangzhou Zengcheng District Center for Disease Control and Prevention

Tianjin Jizhou District Center for Disease Control and Prevention

Shenzhen Baoan District Center for Disease Control and Prevention

Xiamen Center for Disease Control and Prevention

Jiangmen City Center for Disease Control and Prevention

Jiangsu Zhonghui Yuantong