1. Henan Key Laboratory of Helicobacter Pylori & Microbiota and Gastrointestinal Cancer, Marshall Medical Research Cente, 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. Academy of Medical Science, Zhengzhou University, Zhengzhou, Henan, China
4. BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
5. School of Basic Medical Sciences, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China