Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Department of Pancreatic and Gastric Surgical Oncology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Chinese Academy of Medical Sciences - National Cancer Center, Chinese Academy of Medical Sciences - National Cancer Center, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Government of the People's Republic of China - Xijing Hospital of Digestive Diseases, Government of the People's Republic of China - Department of Health Statistics, Tianjin Medical University - Key Laboratory of Cancer Prevention and Therapy, Government of the People's Republic of China - State Key Laboratory of Cancer Biology, Tianjin Medical University - Key Laboratory of Cancer Prevention and Therapy, Chinese Academy of Medical Sciences - National Cancer Center, Government of the People's Republic of China - State Key Laboratory of Cancer Biology and Independent