1. Institute of Biological Products, Division of Hepatitis and Enterovirus Vaccines, National Institutes for Food and Drug Control, Beijing, China
2. National Institutes for Food and Drug Control, Key Laboratory of Research on Quality and Standardization of Biotech Products, Beijing, China
3. National Institutes for Food and Drug Control, Evaluation of Biological Products, Beijing, China
4. State Key Laboratory of Drug Regulatory Science, Institute of Biological Products, National Institutes for Food and Drug Control, Beijing, China
5. Changping Laboratory, Beijing, China