1. Center of Digestive Diseases, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
2. Department of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080,China
3. Department of Pathology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong518107, China
4. Department of Radiology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, China
5. Department of Hepatobiliary Surgery, Shenzhen People’s Hospital, Shenzhen, Guangdong 518020, China
6. Department of Pathology, Qingyuan People's Hospital, Qingyuan, Guangdong, 511518, China; Center of Scientific Research, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China