Figure 1. Flow chart and 10-time cross-validation for tuning parameter selection. (A). Flow chart indicating the process of selecting target genes in this study. (B) Ten-time cross validation for tuning parameter selection in the lasso model. (C). LASSO coefficient profiles of the 129 prognostic genes. A vertical line is drawn at the value chosen by 10-fold cross-validation. Abbreviations: AIC (Akaike information criterion), RFS (relapse-free survival).