Parikh R, Hess LM, Esterberg E, Bhandari NR, Kaye JA. Diagnostic characteristics, treatment patterns, and clinical outcomes for US patients with advanced/metastatic medullary thyroid cancer: a retrospective medical record review. J Thyroid Res. 2022;15(2). doi: 10.1186/s13044-021-00119-9
Bonfill X, Rivero E, Moreno C, Rué M. Changes in cancer mortality in Catalonia and Spain (1975-77 and 1987-89). A comparison with other European countries. Eur J Cancer Prev. 1995 Dec;4(6):453-8.