1. Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
2. Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
3. Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
4. Beijing Laboratory of Biomedical Materials, Beijing 100069, China
5. Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China