1. Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine from Ministry of Education, Engineering Research Center of Chinese Medicine Resources from Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China;
2. Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Sciences, Enshi, Hubei, P. R. China