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Flowchart of patient recruitment and analysis. We created NN1 and CPH models for OS, and NN2 and LR models for cancer progression using OCH training data set. The models were tested using the internal (OCH) and external (KUH) data sets. CPH, Cox proportional hazards; KUH, Kyoto University Hospital; LR, logistic regression; NN, neural network; NSCLC, non–small-cell lung cancer; OCH, Ofuna Chuo Hospital; OS, overall survival; SBRT, stereotactic body radiotherapy.
