CORRELATING RATIOS OF AMINES IN PLASMA AND CEREBROSPINAL FLUID 65 3 Figure 5 Correlation matrix of all possible metabolite ratios in migraine patients Coefficients of determination (R2) of all possible metabolite ratios are plotted in (a) migraine without aura participants (b) migraine with aura participants. (c) all migraine participants together. The higher the correlation the brighter the square.
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