31. EVALUATION OF QUALITY OF LIFE IN ESOPHAGEAL CANCER PATIENTS BEFORE AND AFTER RADIOTHERAPY AT TAN TRIEU GENERAL RADIATION THERAPY DEPARTMENT, K HOSPITAL. (2025). Vietnam Journal of Community Medicine, 66(CĐ7-HNKH Bệnh viện K). https://doi.org/10.52163/yhc.v66iCD7.2414