Establishment and validation of nomograms for predicting survival of lung invasive adenocarcinoma based on the level of pathological differentiation: a SEER cohort-based analysis

Xiaokun Wang, Yongrui Xu, Jinyu Xu, Yundi Chen, Chenghu Song, Guanyu Jiang, Ruo Chen, Wenjun Mao, Mingfeng Zheng, Yuan Wan