1. Department of Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, People's Republic of China
2. Department of Immunology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, People's Republic of China
3. Geneplus-Beijing Institute, Beijing, People's Republic of China
4. Endoscopy Diagnosis and Therapy, Tianjin Medical University Cancer Institute & Hospital, Tianjin, People's Republic of China
5. Department of Pathology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, People's Republic of China
6. Jiangsu Hengrui Medicine Co. Ltd., Lianyungang, People's Republic of China
7. Esophageal Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, People's Republic of China