1. Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
2. Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
3. Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS and PUMC), Beijing, China
4. Department of Statistics, Tianjin University of Finance and Economics Pearl River College, Tianjin, China
5. State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Science, Nankai University, Tianjin, China