Development and Validation of Nomograms to Assess Risk Factors and Overall Survival Prediction for Lung Metastasis in Young Patients with Osteosarcoma: A SEER-Based Study

Figure 5

Comparison of the values of the area under the curve between the nomogram and single independent factors. 12-month, 24-month, and 36-month survival in the training set (a-c), internal validation set (d-f), and external validation set (g-i).

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