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. 2021 Nov 26;14:8881–8902. doi: 10.2147/IJGM.S335123

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© 2021 Deng et al.

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The evaluation of the nomogram to predict BCBM. The ROC curve in the training cohort (A) and the validation cohort (B). The C-index is represented by the area under the curve. The calibration curve in the training cohort (C) and the validation cohort (D). The C-index is represented by the area under the curve. The closer the curve is to the dashed line with a slope of 45°, the higher the calibration of the nomogram.