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Construction of a 7-mRNA signature from the TCGA cohort. (A) 10-fold cross-validation for tuning parameter selection in the LASSO model. The dotted vertical lines are drawn at the optimal values by minimum criteria (lambda.min, left vertical dotted line) and 1-SE criteria (lambda.1se, right vertical dotted line). (B) LASSO model at optimal lambda value, 7 mRNAs with nonzero coefficients were selected.
