For citations:
Volkova A.R., Dora S.V., Ostrouchova E.N., Lisker A.V., Semikova G.V., Demydenko E.U. A rare pancreatic neuroendocrine tumor with proinsulin-secreting activity. Endocrine Surgery. 2020;14(2):16-20. (In Russ.) https://doi.org/10.14341/serg12342

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).