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. 2020 Feb 11;23(4):725–733. doi: 10.1007/s10120-020-01044-w

Fig. 4.

Fig. 4

Receiver operating characteristic (ROC) curve analysis in the differential method (a) and ratio method (b). Areas under the curves (AUCs) were 0.921 (95% CI, 0.853–0.959) and 0.909 (95% CI, 0.830–0.953), respectively. N = 41 for metastasis positive and N = 282 for metastasis negative of the total 323 LNs from 64 patients