1. Quality Department Beijing Imunopharm Pharmaceuticals Co., Ltd. Beijing P. R. China
2. Research and Development Center Beijing Imunopharm Pharmaceuticals Co., Ltd. Beijing P. R. China
3. College of Life Sciences Wuchang University of Technology Wuhan P. R. China
4. Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing P. R. China
5. Analytical Instrumental Center Peking University Beijing P. R. China