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Archived with thanks to Emergency medicine journal : EMJ. This article has been accepted for publication in [Journal, Year] following
peer review, and the Version of Record can be accessed online at [https://emj.bmj.com/content/early/2018/12/01/emermed-2018-208004]. © Authors (or their employer(s) 2018. Reuse of this manuscript version (excluding any databases, tables, diagrams, photographs and other images or illustrative material included where a another copyright owner is identified) is permitted strictly pursuant to the terms of the Creative Commons Attribution-Non
Commercial 4.0 International (CC-BY-NC 4.0)
https://creativecommons.org/licenses/by-nc/4.0/
Except where otherwise noted, this item's license is described as Archived with thanks to Emergency medicine journal : EMJ. This article has been accepted for publication in [Journal, Year] following peer review, and the Version of Record can be accessed online at [https://emj.bmj.com/content/early/2018/12/01/emermed-2018-208004]. © Authors (or their employer(s) 2018. Reuse of this manuscript version (excluding any databases, tables, diagrams, photographs and other images or illustrative material included where a another copyright owner is identified) is permitted strictly pursuant to the terms of the Creative Commons Attribution-Non Commercial 4.0 International (CC-BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/