1. Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China.
2. Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.
3. China Immunotech (Beijing) Biotechnology Co., Ltd, Beijing 102206, China.
4. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China.