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Fig. 3 | BMC Pulmonary Medicine

Fig. 3

From: Identification of biomarkers related to copper metabolism in patients with pulmonary arterial hypertension

Fig. 3

Identification and validation of four biomarkers. A Heatmap of the expression of 28 module DE-CMGs in PAH and control samples from the training set. B The accuracy and error of estimate generation for the SVM‐RFE algorithm in the training set. (C) Candidate genes selected by the LASSO regression model. D Four biomarkers detected by Venn diagram. ROC curves of the prognostic values of the four biomarkers in the training (E), testing (F), and GSE113439 (G) sets

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