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Calibration curve of the nomogram model in primary cohort. The x-axis and y-axis represent the nomogram-predicted recurrence of thyroid cancer and actual probabilities. (A) Calibration curve of 3-year regional recurrence probability. (B) Calibration curve of 3-year regional recurrence probability. (C) Calibration curve of 3-year distant recurrence probability. (D) Calibration curve of 3-year distant recurrence probability.
