1. Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
2. National Engineering Technology Research Center for Combined Vaccines, Wuhan, China
3. China National Biotech Group Company Limited, Beijing, China
4. Wuhan Institute of Biological Products Co, Ltd, Wuhan, China
5. School of Stomatology, Lanzhou University, Lanzhou, China