Prognostic Nomogram for Gastrointestinal Stromal Tumors after Surgery Based on the SEER Database

Figure 5

Calibration curves for the nomogram (red lines) and M-NIH (blue lines) classifications. (a, b) Training group: predicting three-year and five-year GSS. (c, d) Validation group: predicting three-year and five-year GSS.

(a)

(b)

(c)

(d)