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. 2023 Dec 26;6:e48589. doi: 10.2196/48589

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©Andrew J McNeil, Kelsey Parks, Xiaoqi Liu, Bohan Jiang, Joseph Coco, Kira McCool, Daniel Fabbri, Erik P Duhaime, Benoit M Dawant, Eric R Tkaczyk. Originally published in JMIR Dermatology (http://derma.jmir.org), 26.12.2023.

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 Dermatology, is properly cited. The complete bibliographic information, a link to the original publication on http://derma.jmir.org, as well as this copyright and license information must be included.

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Example demarcations from the crowd (blue) versus ground truth (green). (A) Consistent demarcation of highly affected areas by crowds assembled from both the high and low feedback groups, but both missed areas of subtle surface changes. (B) The high feedback crowd failed to identify abnormal changes while low feedback top 5 crowd identified 75% of abnormal skin areas. (C) High variability between images of the same skin region viewed from different angles by the low feedback top 5 crowd. cGVHD: chronic graft-versus-host disease; r: rater.