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. 2017 Jul 19;17:111. doi: 10.1186/s12911-017-0501-x

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© The Author(s). 2017

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. 4 — A simplified schematic diagram showing the national VHA EHR environment and the local VACHS network. The diagram illustrates how the three CDS systems fit into this overall structure, as described in the text. The arrows indicate the flow of clinical data. (Abbreviations not used in the text: WS = Web Service; SQL = Structured Query Language; URL = Uniform Resource Locator; NP = Neuropath/CDS; VACS = VACS Index Calculator)