1. Department of Gastroenterology; Affiliated Hospital of Nantong University; Nantong; 226001; P.R.; China
2. Department of Radiochemotherapy; Affiliated Hospital of Nantong University; Nantong; 226001; P.R.; China
3. Department of Pathology; Affiliated Cancer Hospital of Nantong University, Medical College of Nantong University; Nantong; 226001; P.R.; China
4. Department of Immunology; Medical College, Nantong University; Nantong; 226001; P.R.; China