TY - Journal of International Oncology A1 - Liao Ye, Zhao Lina, Shi Mei T1 - Radiotherapy for elderly esophageal cancer Y1 - 2019-02-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 113 EP - 116 VL - 46 IS - 2 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.issn.1673-422X.2019.02.012 ER -