Figure 1
From: Metabolomics reveals perturbations in endometrium and serum of minimal and mild endometriosis

OPLS-DA scores (left) and loadings plots for multivariate analysis with tissue samples collected from controls (n = 24) and stage I (n = 20), II (n = 13), III (n = 17) and IV (n = 45) of endometriosis patients. Results were from the 7-fold cross-validated models and colored scales were for the correlation coefficients (|r|) of variables.