ENDOSCOPIC INTERNAL DRAINAGE VS. LOW NEGATIVE PRESSURE ENDOLUMINAL VACUUM THERAPY FOR LEAKAGES AFTER ONCOLOGIC UPPER GASTROINTESTINAL SURGERY - Jung, CFM; Müller-Dornieden, A; Hallit, R; Calmels, M; Chaput, U; Dray, X; Gonzalez, JM; Barthet, M; Jacques, J; Legros, R; Goere, D; Gaedcke, J; Ghadimi, M; Kunsch, S; Ellenrieder, Volker; Chaussade, S; Wedi, E; Barret, M (Endoscopy, 2020)