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. 2018 Sep 3;19:470. doi: 10.1186/s13063-018-2839-5

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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. 2 — Time schedule of enrollment, assessments and responsible trial personnel (Standard Protocol Items: Recommendation for Interventional Trials (SPIRIT)). BHK, primary investigator; SW, co-author; N/A, not applicable; OA: outcome assessors; MD, medical doctor/ radiologist; WORC, Western Ontario Rotator Cuff Index; DASH, Disabilities Arm, Shoulder and Hand questionnaire; MRI, magnetic resonance imaging; GRS, Global Rating Scale; NPRS, numeric pain rating scale; ROM, range of motion; US, ultrasound