1. Immunology and Reproduction Biology Laboratory, Medical School, Nanjing University, China
2. Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, China
3. State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, China
4. Department of Microbiology and Immunology, Mucosal Immunobiology and Vaccine Research Center, Institute of Biomedicine, University of Gothenburg, Sweden