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. 2016 May 5;15:259. doi: 10.1186/s12936-016-1301-y

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© Chang 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. 1 — Nine ROKA installations surveyed in Paju and Yeoncheon counties, Gyeonggi Province, Republic of Korea. The squares (located <2 km from the DMZ) and circles (located 11–12 km from the DMZ) denote the general location of the ROKA installations that were surveyed