1. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, P.R. China
2. College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
3. College of Pharmacy, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
4. College of Jiamusi, Heilongjiang University of Chinese Medicine, Jiamusi, Heilongjiang 154007, P.R. China