The 1-year AUC values for TCGA training cohort of the SAGRI constructed using the four sarcoma-like differentiation-related genes (COL7A1, LCTL, NPR3, ZFHX4) were 0.725 in the training set, 0.712 in the internal validation set, and 0.770 in the external validation set. Here, NPR3 is linked to sarcoma.