Fig. 3

DCA of the nomogram and TNM stage 3-year OS and 5-year OS of the training set (A and B), the internal validation set (C and D) and the external validation set (E and F), respectively
DCA of the nomogram and TNM stage 3-year OS and 5-year OS of the training set (A and B), the internal validation set (C and D) and the external validation set (E and F), respectively