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. 2016 Mar 22;14:47. doi: 10.1186/s12955-016-0454-2

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© Peter et al. 2016

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 — Flow diagram. From the 257 patients 188 subjects could be included in the study. Thirty-four patients were not included due to insufficient knowledge of the German language. Thirty-five patients declined to take part in the study. The assessment contained the standard questionnaires (THI, TQ, WHOQOL-BREF, and BDI) and PRISM