1. State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
2. Key
Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic
Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, P. R. China
3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
4. Department
of Immunology, School of Basic Medical Sciences, Chengdu Medical College, Chengdu 610083, P. R. China