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. 2020 Apr 16;11(2):197–215. doi: 10.1007/s13167-020-00202-5

Fig. 7.

Fig. 7

a Receiver operating characteristic (ROC) curve of 9 differential metabolites for distinguishing the general chronic periodontitis group from the healthy group. b Citramalic acid and N-carbamylglutamate 2 were selected and validated as putative biomarkers, with an area under the curve (AUC) 0.876