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. 2015 Aug 31;17(8):e212. doi: 10.2196/jmir.4612

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©Albert Park, Andrea L Hartzler, Jina Huh, David W McDonald, Wanda Pratt. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 31.08.2015.

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, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Example failures that resulted from the application of MetaMap to process patient-generated text in an online health community (blue terms represent patient-generated text; black terms represent MetaMap’s interpretation; and red terms represent failure type).