1. Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shangdong 250021, P.R. China
2. Department of Infectious Diseases, The Fifth Affiliated Hospital of Sun Yat‑sen University, Zhuhai, Guangdong 519000, P.R. China
3. Third Liver Unit, Department of Infectious Disease, The First Affiliated Hospital of Science and Technology of China, Hefei, Anhui 230001, P.R. China
4. Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China