1. College of Medicine, Xi'an International University, Xi’an, P.R. China
2. Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu, Malaysia
3. Beijing Key Laboratory of New Drug Discovery based on Classic Chinese Medicine Prescription, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China