1. Laboratory of Medical Immunology, School of Basic Medical Science, Peking University, 38 Xueyuan Road, Beijing, 100083 China
2. Center for Human Disease Genomics, Peking University, 38 Xueyuan Road, Beijing, 100083 China
3. Laboratory of Histology, School of Basic Medical Science, Peking University, 38 Xueyuan Road, Beijing, 100083 China