Fig. 2

Correlations between relative concentrations of DTC markers. The scatterplots on the left side of the matrix show the median-normalized relative concentrations of DTC markers, plotted on logarithmic axes. Pearson correlation coefficients are shown on the right side of the matrix; the colors and intensities indicate the direction and strengths of the correlations (green: R = 1, white: R = 0, blue: R =  − 1). Statistical significance is indicated with asterisks (***p < 0.001; *p < 0.05). The plots placed on the diagonal show the data densities of the mRNAs indicated in the top bar