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ROC curves of identified metabolites (N = 8). (A) (−)-threo-Iso(homo)3-citrate, (B) 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol glucuronide, (C) Biliverdin, (D) L-Urobilin, (E) D-Leucate. ROC: receiver operating characteristic, AUC: area under the ROC curve, CI: confidence interval.
