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Developed radiomics nomogram and calibration curves for the radiomics nomogram. (a) Age and Rad-score were used for building the radiomics nomogram. Calibration curves for the radiomics nomogram in the training (b) and test (c) sets. Calibration curves indicate the goodness of fit of the nomogram. The 45° straight line represents the perfect match between the actual (Y-axis) and nomogram-predicted (X-axis) probabilities. A closer distance between two curves indicates higher accuracy
