1 CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou, China; CHESS Working Party, Xingtai Institute of Cancer Control, Xingtai People's Hospital, Xingtai, China.
2 CHESS Working Party, Xingtai Institute of Cancer Control, Xingtai People's Hospital, Xingtai, China. Electronic address: [email protected].
3 CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou, China. Electronic address: [email protected].