Fig. 2. Preoperative serum calcitonin and CEA levels based on the primary tumor size quantile. (A) Serum calcitonin. (B) Serum CEA. Serum calcitonin and CEA levels are represented as logarithmic values. *Statistically significant with p≤0.05; **statistically significant with p≤0.01; ***statistically significant with p≤0.001.

Int J Thyroidol 2021;14:143-51 https://doi.org/10.11106/ijt.2021.14.2.143

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