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. 2019 Nov 7;14:1951–1962. doi: 10.2147/CIA.S225039

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© 2019 Huang et al.

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Calibration curve of the nomogram for the training cohort (A) and the validation cohort (B). (A) mean absolute error=0.020 (training cohort); (B) mean absolute error=0.019 (validation cohort).