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. 2018 Aug 28;13:64. doi: 10.1186/s13000-018-0739-3

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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.

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Fig. 3 — Sketch of the analysis. A) ROI tumor (not shown) and the ROI border (dashed red line) were manually delineated by a pathologist (CW). A1: a sliding window moved over the ROI border and cropped every half TMA diameter in the underlying, TMA core-sized image. A2: The resulting tile (exactly the size of one TMA core) was then defined as a virtual TMA (vTMA). b, c This procedure leads to a value (number of tumor buds or budding score) per vTMA. This spatial data could be plotted as a heat map (example heat maps with arbitrary values in the left part) or as a histogram (right part of the figure)