1. Digestive Endoscopy Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
2. Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
3. Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center of Cancer Medicine, Nanjing Medical University, Nanjing, China
4. Nanjing Maternity and Child Health Care Institute, Nanjing Maternity and Child Health Care Hospital Affiliated with Nanjing Medical University, Nanjing, China
5. Pathology Center and Department of Pathology, Soochow University, Suzhou, China
6. Qidong Liver Cancer Institute, The First People's Hospital of Qidong, Qidong, China
7. Department of Infection Diseases, Jiangsu Province Center for Disease Prevention and Control, Nanjing, China