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. 2020 Apr 6;10:5954. doi: 10.1038/s41598-020-62701-9

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Timeline of study participation. This flow chart depicts the steps of the study in a chronological order, consisting of pre- and post-interventional assessments using the headache diary of the German Migraine and Headache Society (DMKG) and Migraine Disability Assessment (MIDAS) questionnaire. These assessments were grouped around a two-week interval of repetitive peripheral magnetic stimulation (rPMS) that was subdivided into six single sessions. Stimulation by rPMS was applied to either myofascial trigger points (mTrPs) of the trapezius muscles (trapezius group) or deltoid muscles (deltoid group). Determination of the presence and location of mTrPs was done by a physiotherapist.