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. 2019 Jun 13;19:377. doi: 10.1186/s12913-019-4141-y

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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. 1 — Health Facility Location and Population Density in Nigeria. Source: [Health Facility Location] The author produced the map of health facility location based on health facility census data. [Population Density by LGA] National Population Commission (NPC) [Nigeria] [45]. No permission was required to access and replicate this figure