1. Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
2. Institute of Traditional Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
3. Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou 510515, P. R. China