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. 2014 Jan 17;9:2. doi: 10.1186/1745-6673-9-2

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Copyright © 2014 Gerber et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 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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Density-equalizing map showing the h-index of each particular country. The area of each country was scaled in proportion to its h-index regarding “silicosis”.