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. 2019 Nov 27;16:62. doi: 10.1186/s12954-019-0335-1

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© The Author(s). 2019

Open Access This 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 — Percentage prevalence of snus use (yellow), cigarette use (blue) and dual use (red) among men and women aged 25 to 64 in Northern Sweden from 1986 to 2009. Taken with permission from [7]