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. 2017 Nov 14;7:15561. doi: 10.1038/s41598-017-15647-4

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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The DPN. Node size is proportional to disease incidence, and the color of the nodes corresponds to the ICD-10 disease category. The width of an edge is proportional to the size of the RR, and the color of an edge indicates the difference between the female RR and the male RR: If the female RR is two-fold greater or more than the male RR, the links are red. If the male RR is two-fold greater or more than the female RR, the links are blue. If the RRs are similar, the links are green.