1. Institute of Materia Medica; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing 100050 China
2. Institute of Clinical Pharmacology; Guangzhou University of Traditional Chinese Medicine; Guangzhou 510006 China
3. Beijing Key Laboratory of Drug Target and Screening Research; Beijing 100050 China
4. State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Beijing 100050 China