Figure 2 | Scientific Reports

Figure 2

From: Spectrochemical approach combined with symptoms data to diagnose fibromyalgia through paper spray ionization mass spectrometry (PSI-MS) and multivariate classification

Figure 2

Graphs of PC1 versus PC2 scores for the moderate CAT symptom, with CG (yellow) and FG (blue) samples and confidence ellipses (dashed circles) for the analyzed datasets. The percentage of total variance for each PC is described in parentheses. Graphs of the other symptoms can be found in the supplementary information (Fig. S2).

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