1. Department of Pathogen Biology & Jiangsu Key Laboratory of Pathogen Biology & Helicobacter pylori Research Centre Nanjing Medical University Nanjing, Jiangsu211166China
2. Department of Gastroenterology Sir Run Run HospitalNanjing Medical University Nanjing, Jiangsu211166China
3. Key Laboratory of Combinatorial Biosynthesis and Drug Discovery Ministry of Education School of Pharmaceutical Sciences Wuhan University Wuhan, Hubei430071China