Figure 4. Box plots of the NMR metabolite fractions identified by ANOVA analysis.

Box plots of $x_{metabolite}^{Celltype}$ for those 18 metabolites identified by an ANOVA analysis which indicated $〈x_{metabolite}〉$ was unequal between at least two of the four cell types. While the ANOVA analysis identified $〈x_{valine}〉$, post-hoc/multiple comparison testing could not identify any significant differences in $〈x_{valine}〉$ between the cell lines, which is denoted by the superscript ‘##’.