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Fistula patch for the occulsion of EAF. (A) The appearance of fistula patch. (B) The fistula patch needs to be rolled up for implantation. (C) The patients with EAF received the treatment of fistula patch that was fixed using a tube. Reproduced with the permission from Wang et al. (D) The schematic diagram of the fistula patch application and fixation. It highlights the potential risks for cutting the intestinal wall caused by the patch edge.
