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. 2020 Sep 14;766:145145. doi: 10.1016/j.gene.2020.145145

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Fig. 4 — Validation study and combined analysis of CCL17. A) A total of 58 independent samples were enrolled in the validation study. CCL17 data were collected at an early phase of hospitalization. The cut-off value, 87.5 pg/mL, is used for the validation samples. B) ROC curve analysis using both screening and validation samples. The combined cut-off value is 95.0 pg/mL. C) The combined cut-off value is used for all samples of both screening and validation samples. PPV: positive predictive value, NPV: negative predictive value.