Small-bowel mucosal injuries in low-dose aspirin users with obscure gastrointestinal bleeding

Figure 1 Endoscopy. A: Endoscopic finding of erosion (a small erosion was defined as a circumscribed area of mucosal disruption denuded of villi with or without exudates or red color with a diameter equivalent to a valvulae conniventes); B: Endoscopic finding of ulcer (ulcers were defined as a large erosion with a central area with exudates).