1. Department of Infectious Disease, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
2. Department of Pediatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
3. Department of General surgery, Sanmen People's Hospital, Taizhou, Zhejiang 317199, China
4. Department of Infectious Disease, the First Affiliated Hospital of Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, China