1. State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School; Sichuan University; 3-17 Renmin South Road Chengdu Sichuan 610041 China
2. Department of Gastrointestinal Surgery, West China Hospital; Sichuan University; Chengdu Sichuan 610072 China
3. Pharmacology & Pharmaceutical Sciences School of Medicine/Collaborative Innovation Center for Biotherapy; Tsinghua University; Beijing 100084 China
4. Department of Pathology; Sichuan Provincial People's Hospital; Chengdu Sichuan 610072 China
5. Department of Liver Surgery and Liver Transplantation Center, West China Hospital; Sichuan University; Chengdu Sichuan 610041 China