1. Gansu Technology Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
2. Engineering Research Center of Key Technology and Industrialization of Cell-based Vaccine, Ministry of Education, Lanzhou, China
3. Gansu Provincial Bioengineering Materials Engineering Research Center, Lanzhou, China
4. Wuhan Institute of Biological Products Co., Ltd., Wuhan, China
5. National Engineering Technology Research Center for Combined Vaccines, Wuhan, China
6. Key Laboratory of Biotechnology and Bioengineering of National Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
7. China National Biotech Group Company Limited, Beijing, China