Gustalik, Joanna, David Aebisher, Ewa Kaznowska, and Dorota Bartusik-Aebisher. 2020. “Mixed Adenocarcinoma-Neuroendocrine Cancer – a Case Report”. European Journal of Clinical and Experimental Medicine 18 (4):335–337. https://doi.org/10.15584/ejcem.2020.4.13.