1. Hebei Key Laboratory of Gastroenterology; Department of Gastroenterology; Hebei Institute of Gastroenterology; The Second Hospital of Hebei Medical University; Shijiazhuang Hebei China
2. Department of Gastroenterology; Hebei General Hospital; Shijiazhuang Hebei China
3. Ronghe Biotechnology Co., Ltd.; Shijiazhuang Hebei China
4. Department of Gastroenterology; The Third Hospital of Hebei Medical University; Shijiazhuang Hebei China