1. Medical School, Southeast University, Nanjing 210009, China
2. Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210009, China
3. Department of Ultrasound, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
4. Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210009, China