Fig. 7
Validation of the prognostic risk signature in the validation group. a The survival analysis of the two subgroups stratified based on the median of risk scores calculated by the prognostic risk signature; b The ROC curve for evaluating the prediction efficiency of the prognostic signature; c, d The distributions of prognostic signature-based risk scores and its corresponding expression profiles. The red dots represent high-risk patients, green dots represent low-risk patients