Fig. 3From: The stratification of patient risk depending on the size and ratio of metastatic lymph nodes in papillary thyroid carcinomaRecurrence-free survival according to the size of mLN (a) or the groups of patient’s risk (b) by Kaplan-Meier curves. a These showed poorer RFS in the pN1mac than pN1mic (3-year RFS 95.5% versus 92.7%, p = 0.136). b These showed better RFS in the risk group I than the other two groups (p = 0.015)Back to article page