Rudyk, D. .; Tutchenko, M. .; Besedinskyi, M. .; Chub, S. .; Lovin, A. .; Ahapchenko, I. . GASTROINTESTINAL BLEEDING AGAINST THE BACKGROUND OF NON-CIRRHOTIC PORTAL HYPERTENSION IN A PATIENT WITH MYELOFIBROSIS (CASE REPORT). East. Ukr. Med. J. 2025, 13, 299-305.