1. a School of Chinese Materia Medica, Beijing University of Chinese Medicine, Chaoyang District , Beijing , P. R. China
2. c Institute for the Control of Traditional Chinese Medicine and Ethnomedicine , National Institutes for Food and Drug Control, State Food and Drug Administration , Beijing , P. R. China
3. b Research Center of CM Processing Technology, Beijing University of Chinese Medicine, Chaoyang District , Beijing , P. R. China
4. d Scientific Research Institute of Beijing Tongrentang Pharmaceutical Company , Beijing , P. R. China