TY JOUR TI MODERN ASPECTS OF DIAGNOSTICS RECTAL CANCER (literature review) KW rectal cancer KW endoscopic examination KW magnetic resonance imaging KW ultrasound KW positron emission tomography KW laboratory methods. JO Clinical Medicine and Pharmacology AU Guseynov, A.Z. AU Guseynov, T.A. PY 2025 IS 11 PB LLC Information and publishing center Innovations and investments