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PIŁKA, Nina and DRABCZYK, Mateusz. A calcitonin secreting pancreatic neuroendocrine tumor with liver metastasis and hepatic vein thrombosis: a case report. Quality in Sport. Online. 27 November 2024. Vol. 35, p. 55771. [Accessed 9 March 2025]. DOI 10.12775/QS.2024.35.55771.