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. 2020 Sep 24;3(2):e18367. doi: 10.2196/18367

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©David Dallas-Orr, Yordan Penev, Robert Schultz, Jesse Courtier. Originally published in JMIR Perioperative Medicine (http://periop.jmir.org), 24.09.2020.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Perioperative Medicine, is properly cited. The complete bibliographic information, a link to the original publication on http://periop.jmir.org, as well as this copyright and license information must be included.

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Lin’s concordance plots of a) circumference tool, b) angle tool; interrater reliability plots of c) circumference tool for the picture archiving and communication system (PACS), d) circumference tool for augmented reality presurgical planning system (ARPPS), e) angle tool for PACS, f) angle tool for ARPPS.