Kostyukevych, O. M. “Determining Level of Endogenous Serum Erythropoietin for Differential Diagnosis of Polycythemia Vera and Symptomatic Polycythemia”. Medicni perspektivi 18, no. 2 (July 30, 2013): 66–73. Accessed December 3, 2024. https://journals.uran.ua/index.php/2307-0404/article/view/15950.