ORREGO, J. J.; CHORNY, J. A. Sporadic calcitonin-negative medullary thyroid carcinoma is not more aggressive than its classic counterpart: case report and review of the literature. Revista Colombiana de Endocrinología, Diabetes & Metabolismo, [S. l.], v. 3, n. 4, p. 32–35, 2017. DOI: 10.53853/encr.3.4.14. Disponível em: https://revistaendocrino.org/index.php/rcedm/article/view/14. Acesso em: 16 jul. 2024.