Validation of DMS score using independent cohort and 2 publicly available data sets. (A,B) Kaplan-Meier analyses of (A) DFS and (B) OS based on DMS score using a validation cohort. A log-rank test was used for survival analysis. (C,D) Kaplan-Meier analyses of (C) PFS in Schmitz cohort and (D) OS in Reddy cohort based on DMS score. A log-rank test was used for survival analysis.