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ROC curves of various combination methods combined detection. QFT: Quanti FERON-TB; ESR: erythrocyte sedimentation rate; ADA: adenosine deaminase; CA125: cancer antigen 125; hs-CRP: high-sensitivity C-reactive protein. (a) two-tem in combination; (b) three-tem in combination; (c) four- and five-tem in combination.
