Kuryk, O. G., V. O. Yakovenko, V. V. Bazdyrev, and L. V. Bodnar. “Neuroendocrine Tumors (carcinoids) of the Stomach and Intestines - Early Diagnosis and Minimally Invasive Endoscopic Procedures”. Морфологія / Morphologia / Morfologìâ, vol. 8, no. 1, Mar. 2014, pp. 58-64, doi:10.26641/1997-9665.2014.1.58-64.