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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
CT scanning of the 3D-printed model. (A): A high-resolution CT scan (slice thickness 0.4 mm) was obtained from all 35 3D-printed models. (B): The 3D model was segmented using MIS, and an STL file (3D model STL) was generated.