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. 2018 Sep 24;19:520. doi: 10.1186/s13063-018-2890-2

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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. 1 — Standard Protocol Items: Recommendations for Interventional Trial (SPIRIT) Figure, study design overview. *Done by podiatrist during outpatient clinic visit, or retrospectively, from outpatient visit lists. T_3, T_6, T₉,…refer to assessments at 3, 6, 9,…months’ follow-up. PAD peripheral arterial disease, SF-36 36-Item Short Form Health Survey, EQ-5D-3 L 3-Level EuroQol Quality of Life Scale, iPCQ Medical Technology Assessment (iMTA) Productivity Cost Questionnaire, iMCQ iMTA Medical Consumption Questionnaire