A view on the problem of providing oncological aid during the war in Ukraine - Gordiichuk, Prokip; Kliusov, Oleksandr; Gordiichuk, Mykola; Kondratenko, Andrii; Ponomarova, Olga; Grushynska, Tamara; Kliusov, Artem; Chervynskyy, Ivan (Contemporary Oncology/Współczesna Onkologia, 2022)