Fig. 2

a, b Endoscopic image of the anastomotic site on post-operative day (POD) 14. c, d Endoscopic image of the anastomotic site on POD 24. e, f Endoscopic image of the anastomotic site on POD 46
a, b Endoscopic image of the anastomotic site on post-operative day (POD) 14. c, d Endoscopic image of the anastomotic site on POD 24. e, f Endoscopic image of the anastomotic site on POD 46