Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Medical Immunology (Ministry of Health), Peking University Health Science Center, Beijing, 100191, China. Peking University Center for Human Disease Genomics, Beijing, 100191, China. Institute of Hematology, Peking University People's Hospital, Beijing, 100044, China. Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Medical Immunology (Ministry of Health), Peking University Health Science Center, Beijing, 100191, China. hanwl@bjmu.edu.cn. Peking University Center for Human Disease Genomics, Beijing, 100191, China. hanwl@bjmu.edu.cn.