Boxplot of relative concentrations for some significantly altered metabolites (p < 0.05) in serum of G4 (green) and G0 (red) patients.

<p>Y axes are represented as relative units. Data were normalized to the total spectral area. Due to this normalization process we obtained negative scale in the Y-axis in some of the bins (Metaboanalyst program analysis). The bar plots show the normalized values (mean +/- one standard deviation). The boxes range from the 25% and the 75% percentiles; the 5% and 95% percentiles are indicated as error bars; single data points are indicated by circles. Medians are indicated by horizontal lines within each box.