Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12874-017-0291-y/MediaObjects/12874_2017_291_Fig2_HTML.gif)
Selection of genes and clinicopathological variables. PgR, ER, p53Status, and AgeDiagnosis are clinicopathological covariates, whereas all others are genes. The \(\mathcal {M}\)-unpenalized lasso and \(\mathcal {M}\)-unpenalized elastic net were performed without penalization on the clinicopathological variables as mandatory covariates