TY - Journal of International Oncology A1 - Zhang Wei, Guan Luan, Yin Haitao, Zhou Chong, Wu Chengjun T1 - A phase Ⅱ prospective study on raltitrexed combined with concurrent radiotherapy for elderly esophageal carcinoma Y1 - 2017-07-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 504 EP - 507 VL - 44 IS - 7 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.issn.1673-422X.2017.07.006 ER -