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 3

The calibration curve of the nomogram in the training set (a), internal validation set (b), and external validation set (c); the decision curve analysis of the nomogram in the training set (d), internal validation set (e), and external validation set (f).

(a)

(b)

(c)

(d)

(e)

(f)