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. 2017 Oct;9(4):201–205. doi: 10.15171/mejdd.2017.74

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© 2017 by Middle East Journal of Digestive Diseases

This work is published by Middle East Journal of Digestive Diseases as an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-sa/4.0/). Non-commercial uses of the work are permitted, provided the original work is properly cited.

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Fig. 5 — Huang type A4