1. Ethnic Drug Screening & Pharmacology Center, Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education; Yunnan Minzu University; Kunming 650500 China
2. State Key Laboratory of Bioactive Substances and Functions of Natural Medicines; Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing 100050 China
3. Department of Pharmacology; Yunnan University of TCM; Kunming 650500 China
4. Department of Pharmacology & Pharmacy, Li Ka Shing Faculty of Medicine; The University of Hong Kong; Pok Fu Lam Hong Kong China