The predictive value of prognostic nutritional index for long-term survival after radical radiotherapy in elderly patients with esophageal cancer

YAN Ke, WEI Wan-yi, DU Xing-yu, ZHANG Xue-yuan, SHEN Wen-bin, ZHU Shu-chai

Tianjin Medical Journal . 2021, (8): 861 -865 . DOI: 10.11958/20210143