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. 2014 Dec 20;12:392. doi: 10.1186/1477-7819-12-392

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© Morimoto et al.; licensee BioMed Central. 2014

This article is published under license to BioMed Central Ltd. 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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Placement of trocars. The first trocar is inserted at the umbilicus (1), and used in minilaparotomy. At (3) and (5), a 5-mm trocar is used. At (2) and (4), a 12-mm trocar is used. At (6), a liver retractor is used.