1. Research Center for Drug Discovery
2. School of Pharmaceutical Sciences
3. Sun Yat-sen University
4. Guangzhou 510006
5. People's Republic of China
6. The Institute of Human Virology
7. Zhongshan School of Medicine
8. Guangzhou
9. Guanghua School of Stomatology
10. Guangdong Provincial Key Laboratory of Stomatology
11. Guangzhou 510080