1 National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, Jiangsu, China. wangp@immunol.org.
2 Institute for Immunology, Tsinghua University, Beijing, China. xiaoyuhu@tsinghua.edu.cn.
3 School of Basic Medical Sciences, Tsinghua University, Beijing, China. xiaoyuhu@tsinghua.edu.cn.
4 Tsinghua-Peking Center for Life Sciences, Beijing, China. xiaoyuhu@tsinghua.edu.cn.