1. Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China
2. Department of Gastrosplenic Diseases, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China
3. School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, P.R. China