| Affiliation: | 1. Henan Provincial Center for Disease Control and Prevention, Henan, China;2. Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China;3. Beijing Institute of Biological Products, Beijing, China;4. Chinese Center for Disease Control and Prevention, Beijing, China;5. National Institute for Food and Drug Control, Beijing, China;6. MOE Key Laboratory of Protein Science & Collaborative Innovation Center of Biotherapy, School of Medicine, Tsinghua University, Beijing, China;7. Beijing Zhongsheng Hengyi Pharmaceutical Technology, Beijing, China |
