Kolesnik, A. P. ., Kolesnіk I. P. ., and V. V. . Kechedzhyiev. “Survival Analysis of Elderly and Senile Patients With Colon Cancer of II–III Stages”. Modern Medical Technology, no. 1, Apr. 2019, pp. 60-65, doi:10.34287/MMT.1(40).2019.10.