1. State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
2. Department of Digestive Disease, the Third affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
3. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
4. Health Physics Department, CNNP Nuclear Power Operations Management Co., Ltd., Haiyan, Zhejiang, China
5. Department of Oncology, the Second Affiliated Hospital of Suzhou University, Suzhou 215004, China