EXTRAMURAL VENOUS INVASION AS A FACTOR OF DISTANT METASTASIS IN PATIENTS WITH LOCALLY ADVANCED RECTAL CANCER. Вопр. онкол. [Internet]. 2020 Feb. 1 [cited 2026 Oct. 14];66(2):155-9. Available from: https://voprosyonkologii.ru/index.php/journal/article/view/1068