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. 2017 Feb 27;17:167. doi: 10.1186/s12913-017-2086-6

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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. 3 — Differences in the use of pain medications in the Swiss cantons in 2013. Graphical representation of the reimbursed claims per 100’000 persons stratified for sex, age, and canton. Copyright geodata Swiss Federal Statistical Office / swisstopo