Effect of comorbidity classes on survival of patients with gastrointestinal tract cancer by Linna Gao, Tian Yao, Shaohua Ge, Jiuwei Cui, Wei Li, Zengqing Guo, Hongxia Xu, Min Weng, Suyi Li, Qinghua Yao, Wen Hu, Lan Zhou, Junqiang Chen, Xianghua Wu, Qingchuan Zhao, Hongli Li, Hanping Shi, Yi Ba, He Huang, The Investigation on Nutrition Status and its Clinical Outcome of Common Cancers (INSCOC) Group

Subjects: “…Gastrointestinal tract cancer…”
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