1 National Clinical Research Center for Infectious Diseases, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China.
2 National Clinical Research Center for Infectious Diseases, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China drchenjun@163.com xulin27@mail.sysu.edu.cn.
3 School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China drchenjun@163.com xulin27@mail.sysu.edu.cn.