Przyczyna, Piotr, Elżbieta Trojnar, Dorota Bartusik-Aebisher, and David Aebisher. “Metastasis of Cancer from Merkel Cells to the Thyroid Gland”. European Journal of Clinical and Experimental Medicine 19, no. 1 (March 30, 2021): 86–88. Accessed January 18, 2026. https://journals.ur.edu.pl/ejcem/article/view/11879.