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. 2016 Mar 24;15:46. doi: 10.1186/s12940-016-0129-9

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© Weichenthal 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. 5 — Concentration response plots for PM_2.5 and risk of MI. Legend: Concentration response plots for PM_2.5 and risk of emergency room visits for myocardial infarction below the 50^th percentile (blue) and above the 75^th (red line) and 90^th percentiles (black line) of OP^GSH using cubic splines with 4 knots. All models are adjusted for 3-day mean ambient temperature and relative humidity