1. Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China Sun Yat‐sen University Cancer Center Guangzhou China
2. Department of Hepatobiliary Oncology Sun Yat‐sen University Cancer Center Guangzhou China
3. Department of Pancreatobiliary Surgery Sun Yat‐sen University Cancer Center Guangzhou China
4. Department of Pathology Sun Yat‐sen University Cancer Center Guangzhou China
5. Department of Pathology Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) Chongqing China