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. 2019 Nov 12;10(Suppl 1):20. doi: 10.1186/s13326-019-0214-4

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© The Author(s). 2019

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. 1 — Illustration of patient’s experience, information entered in the structured part of the primary care record (Read codes), and additional information that might be available in free text. In this hypothetical example, the subtype of myocardial infarction and preceding symptoms are present only in the free text