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Determination of plasma sPLA2-IIa to predict lung cancer by ROC analysis. 96 Lung cancer specimens from the BNLCC relative to 20 healthy donors (a), 96 Lung cancer specimens relative to 29 benign SPN specimens from the BNLCC (b), and 18 T2 stage lung cancer specimens relative to 29 benign SPN specimens from the BNLCC were subjected to ROC analysis. Area under the ROC curve (AUC) and 95% confidence interval (95% CI) were determined.
