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. 2015 Jun 18;15:73. doi: 10.1186/s12893-015-0057-6

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© Huang et al. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Intersphincteric resection (ISR) and specimen extraction. (a) ISR. (b) Transanal extraction and resection of specimen (natural orifice specimen extraction)