1. Department of Gastroenterology, The First People's Hospital of Jiujiang, Jiujiang, Jiangxi 332000, P.R. China
2. Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
3. State Key Laboratory of Quality Research in Chinese Medicines and Faculty of Chinese Medicine, Macau University of Science and Technology (MUST), Taipa, Macau 999078, P.R. China
4. Center for Medical Research and Innovation, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan 410000, P.R. China