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. 2021 Aug 4;11:15853. doi: 10.1038/s41598-021-95002-w

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© The Author(s) 2021

Open Access This 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/.

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Average error for each patient with Systems S (A) and E (B). In the left column, the x-axis indicates the case number and the y-axis indicates the prediction error, which was defined as the difference between the predicted and actual post-treatment surface values. The right column shows the predicted face (red), actual post-treatment face (blue), and actual pre-treatment face (grey) for the eight representative cases in each group.