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. 2015 Jun 30;29(8):697–704. doi: 10.1111/ctr.12570

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© 2015 The Authors. Clinical Transplantation Published by John Wiley &Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Ultrasonography (US) grading of gastrointestinal graft‐versus‐host disease (GI‐GVHD). (A) US grade 1: Mucosa and submucosal layers are slightly thickened in the wall layer (arrow) and the boundary between internal low echoic layer (mucosa) and the third layer is clear (arrow head). (B) US grade 2: Diffuse wall thickness (arrow) and the boundary of internal low echoic layer and submucosa is obscure (arrow head). (C) US grade 3: Internal low echoic layer is markedly low, and increased Doppler signaling is seen in the layer (arrow). (D) US grade 4: Desquamated mucosal epithelium (arrow head) is seen in the internal lumen with wall thickening (arrow).