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. 2016 Sep 6;18(9):269. doi: 10.1007/s11051-016-3572-1

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© The Author(s) 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.

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Fig. 1 — Graphene papers and patents, worldwide, 2004–2015.

Source (1) Analysis of scientific papers (articles, proceedings papers, and reviews) with “graphene” in title, Web of Science, publication years 2004–2015 (N = 47,074); and (2) analysis of patent applications identified by “graphene” in title or topic fields, 2004–2015 (N = 19,0402), Derwent Innovations Index, Thomson Reuters