1. Institute of Biological Products, Division of Hepatitis and Enterovirus Vaccines, National Institutes for Food and Drug Control, Beijing, China
2. NHC Key Laboratory of Research on Quality and Standardization of Biotech Products, Beijing, China
3. NMPA Key Laboratory for Quality Research and Evaluation of Biological Products, Beijing, China
4. Guangzhou Laboratory. No. 9 XingDaoHuanBei Road, Guangzhou, China