1. College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, P.R. China
2. the State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, P.R. China
3. School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, P.R. China
4. The Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, P.R. China