1. Henan Key Laboratory for Helicobacter pylori & Microbiota and GI cancer, Marshall Medical Research Center The Fifth Affiliated Hospital of Zhengzhou University Zhengzhou Henan China
2. Department of Gastroenterology The Fifth Affiliated Hospital of Zhengzhou University Zhengzhou Henan China
3. Biotherapy Center The First Affiliated Hospital of Zhengzhou University Zhengzhou Henan China
4. Department of Sciences and Education and Pediatrics The Fifth Affiliated Hospital of Zhengzhou University Zhengzhou Henan China