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. 2019 Apr 4;7(4):E568–E575. doi: 10.1055/a-0869-7619

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Fig. 2 — Endoscopic image of Mayo endoscopic subscore (MES). a Endoscopic image of MES 0 (no friability, granularity, and intact vascular pattern). b Endoscopic image of MES 1 (mild erythema or decreased vascular pattern). c Endoscopic image of MES 2 (marked erythema, absent vascular pattern, friability, and erosions). d Endoscopic image of MES 3 (spontaneous bleeding and ulceration).