1. Department of Gastroenterology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology; Clinical Research Center for Intestinal & Colorectal Diseases of Hubei Province; Key Laboratory for Molecular Diagnosis of Hubei Province, Wuhan, China
2. Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China