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The ROC curve for the early recurrence and metastasis group and the non-recurrence and metastasis group. A. The area under the ROC curve was 0.917, p < 0.001. B. Prognostic index in the initial sample group and progression-free survival in patients with lung adenocarcinoma, p < 0.001. C. Prognostic index in the validation sample group and progression-free survival in patients with lung adenocarcinoma, p < 0.001.
