1. Department of Hepatobiliary Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
2. Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, Clinical College of Jiangsu University, Nanjing 210008, China
3. Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing 210009, China
4. Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210009, China
5. Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, China
6. Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210009, China