Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12893-022-01789-4/MediaObjects/12893_2022_1789_Fig3_HTML.png)
Calibration curves for predicting Recurrence-free survival (RFS) and overall survival (OS) using the nomograms. a and b 3 and 5-year RFS in the training cohort. c and d 3 and 5-year OS in the training cohort. e and f 3 and 5-year RFS in the validation cohort. g and h 3 and 5-year OS in the validation cohort