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Estimated area under receiver operating characteristics (AUC) (with 95% CI) of four biomarker combinations; (A) anti-A60 IgG + anti-A60 IgA + CRP, (B) anti-A60 IgG + CRP (C) anti-A60 IgA + CRP, and (D) anti-A60 IgG + anti-A60 IgA for different study subpopulations.
