Data on demographic and clinicopathological characteristics of patients with medullary thyroid cancer were extracted from the Surveillance, Epidemiology, and End Results (SEER) database,
Extracting demographic and clinicopathological characteristics data of patients with medullary thyroid cancer from the Self Monitoring, Epidemiology, and End Results (SEER) database,
Demographic and clinicopathological data of patients with medullary thyroid carcinoma were extracted from the surveillance, epidemiology and final results (SEER) database.