2019. EXPERIENCE OF DOUBLE STENTING IN MALIGNANT BILIARY AND DUODENAL OBSTRUCTION IN PATIENTS WITH ADENOCARCINOMA OF THE PANCREATIC HEAD. Voprosy onkologii. 65, 3 (Mar. 2019), 404–408. DOI:https://doi.org/10.37469/0507-3758-2019-65-3-404-408.