1. Guangdong Key Laboratory for Research and Development of Natural Drugs; Guangdong Medical University; Zhanjiang Guangdong P. R. China
2. School of Biomedical Sciences; Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong P. R. China
3. Department of Pharmacology; Guangdong Medical University; Dongguan Guangdong
4. Department of Orthopaedics & Traumatology; The Chinese University of Hong Kong; Prince of Wales Hospital; Shatin Hong Kong P. R. China
5. School of Pharmaceutical Sciences; Southern Medical University; Guangzhou China
6. Stanley Ho Centre for Emerging Infectious Diseases; The Chinese University of Hong Kong; Hong Kong P. R. China
7. School of medicine; South China Unversity of Technlogy; Guangzhou P. R. China