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The ROC curve analyses of PAH−CHD vs. CHD. (A) The ROC curve generated by predictive values of probability from binary logistic regression model with lactate and threonine for diagnosis of PAH−CHD; (B–D) Univariate ROC curves of lactate, threonine and alanine for diagnosis of right heart dysfunction; (E) The ROC curve generated by predictive values of probability from binary logistic regression model with lactate, threonine and alanine for diagnosis of right heart dysfunction.
