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Receiver operating characteristic (ROC) curve analysis of 9 changed metabolites in SLK tear fluids. (A) Diagnostic efficacy evaluation using ROC curves of altered metabolites of tear between SLK and Ctrl individuals. For all 9 metabolites, the AUC ranged from 0.914 to 1 indicating good predictive ability. (B) According to data combining 9 metabolites in (A), the cumulative ROC curve-based model evaluation (AUC = 1).
