1 Department of Immunology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China. Electronic address: quchf@cicams.ac.cn.
2 Department of Immunology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
3 Department of Etiology, Qidong People's Hospital/Qidong Liver Cancer Institute, Jiangsu 226200, China.