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. 2019 Dec 31;14(12):e0227388. doi: 10.1371/journal.pone.0227388

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© 2019 Rudisill et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — Upper-left: Location of work-related crashes; Upper-right: Kernel density estimation of work-related crashes. Lower-left: Location of non-work-related crashes; Lower-right: Kernel density estimation of non-work-related collisions. Areas of purple have low number of fatal crash sites, and bright yellow have a higher number of crash sites.