1. Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
2. Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China
3. Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
4. Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
5. Suzhou Red Cross Blood Center, Suzhou, China