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Comparison of the systems for endoluminal vacuum therapy; cEVT (Eso-SPONGE®) and FS-EVT with diameters of 12 Fr/10 Fr/8 Fr (from left to right). cEVT: conventional endoluminal vacuum therapy; Fr: French; FS-EVT: fistulassponge–endoluminal vacuum therapy (picture created by ME).
