1. Hubei Province Key Laboratory of Allergy and Immunology Wuhan University School of Basic Medical SciencesWuhan University Wuhan P. R. China
2. Department of Research Tumor Hospital of Guangxi Medical University Nanning P. R. China
3. Department of Gastroenterology Renmin Hospital of Wuhan University Wuhan P. R. China
4. Department of Endocrinology Institute of geriatric medicineLiyuan HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan P. R. China
5. Center for Stem Cell Research and Application Union Hospital Tongji Medical School Huazhong University of Science and Technology Wuhan P. R. China