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. 2015 Jun 2;5:10650. doi: 10.1038/srep10650

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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Geographic network obtained from mobility traces (a) and call logs (b), where nodes represent sub-prefectures. This map was generated by a custom d3 script. Map data: © OpenStreetMap contributors, available under the Open Database License.