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. 2015 Nov 24;2:150065. doi: 10.1038/sdata.2015.65

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Copyright © 2015, Macmillan Publishers Limited

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 Metadata associated with this Data Descriptor is available at http://www.nature.com/sdata/ and is released under the CC0 waiver to maximize reuse.

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Shown separately are counts for compound semantic types, object semantic types, and the sum of both, each plotted in separate colors as indicated by the figure legend. The x-axis lists each of the top 10 UMLS semantic types by their 4-letter abbreviation, for ease of plotting. Each abbreviation is defined beneath the plot, in descending order of frequency.