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. 2019 May 15;19:145. doi: 10.1186/s12909-019-1591-1

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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. 6 — Incision in red indicates the location of the carotid artery (a). Thin layer of meat covering the model simulates the sternocleidomastoid muscle (b). SCM, sternocleidomastoid muscle; AS, anterior scalene muscle; MS, middle scalene muscle; CA, carotid artery; the interscalene brachial plexus is located between AS and MS muscles; 1, C5 nerve root; 2, C6 nerve root; 3, C7 nerve root