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. 2020 Jun 1;6:12. doi: 10.1186/s41205-020-00067-4

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 3 — a: The complete assembly up of the Hands On Surgical Training in Congenital Heart Surgery (HOST-CHS) simulator. This assembly includes the pediatric chest wall cavity, suture retraction disk, roll and pitch components, operating table simulator, a webcam and lighting equipment. b A surgeon suturing a transannular patch on a tetralogy of Fallot 3D-printed heart model through the sternotomy incision of the HOST-CHS simulator. The 3D-printed heart model has been placed at the optimized height inside the holder, while the surgeon utilizes the suture retraction disk