1. Jiangsu Province Academy of Traditional Chinese Medicine, 210028 Nanjing, Jiangsu Province, P.R. China
2. Nanjing Lishui District Hospital of Traditional Chinese Medicine, 211200 Nanjing, Jiangsu Province, P.R. China
3. Gastroenterology, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 518000 Shenzhen, Guangdong Province, P.R. China