1. Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
2. Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
3. Department of Nursing, Nanjing University, Nanjing, Jiangsu, China
4. Department of Gastroenterology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China