Yuanyuan Xiao, Xiaotao Xu, Wei Chen, Shancheng He, Baochang Xie, Wenqi Zhao, Yuhui Xu. "XGBoost and SHAP based lymph node ratio thresholds for predicting overall survival in stage I to IIIA NSCLC." Scientific Reports (2026). https://doi.org/10.1038/s41598-026-47993-7