Kaplan-Meier survival plots for the microarray datasets. Kapan-Meier plots for the microarray datasets where patients were divided by having GAPDH probe expression levels higher (red line) or lower (black line) than the median levels. For the Roepman et al. 2009 dataset, TPI1 probe was plotted due to GAPDH probe unavailability (see in Methods). It can be observed a general agreement among the datasets, and with our RQ-PCR results (Figure 2), with the exception of Botling 2013 dataset.