Endoscopic vacuum therapy with instillation (iEVT) - a novel endoscopic concept for colorectal anastomotic leak and perianal complications. - Bobkiewicz, Adam; Krokowicz, Lukasz; Banasiewicz, Tomasz; Borejsza-Wysocki, Maciej (Videosurgery & Other Miniinvasive Techniques / Wideochirurgia i Inne Techniki Mało Inwazyjne, 2020)