1. Department of Infectious Diseases; Nanfang Hospital; Southern Medical University; Guangzhou China
2. Department of Infectious Diseases; The First Affiliated Hospital of Wenzhou Medical University; Wenzhou Zhejiang China
3. Department of Infectious Diseases; Linyi People's Hospital; Linyi Shandong China
4. Department of Infectious Diseases; The Affiliated Hospital of Putian University; Putian Fujian China
5. Department of Pathology; Beijing Ditan Hospital; Capital Medical University; Beijing China