Extension of Prophylactic Surgery in Medullary Thyroid Carcinoma. Differences Between Sporadic and Hereditary Tumours According to Calcitonin Levels and Lymph Node Involvement - Juez, LD; Mercader, E; Amunategui, I; Febrero, B; Rodriguez, JM; Gomez-Ramirez, J (WORLD JOURNAL OF SURGERY, 2022)