1. The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
2. School of Biopharmacy, China Pharmaceutical University, Nanjing, China
3. Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou medical university, Xuzhou, China
4. Changzhou High-Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc., Changzhou, P. R. China