RUDYK, D., et al. “DIFFUSE LARGE B-CELL LYMPHOMA COMPLICATED BY BLEEDING FROM VARICOSE VEINS OF THE STOMACH AGAINST THE BACKGROUND OF SINISTRAL PORTAL HYPERTENSION. CASE STUDY AND LITERATURE REVIEW”. Experimental Oncology, vol. 47, no. 1, July 2025, pp. 102-7, doi:10.15407/exp-oncology.2025.01.102.