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. 2021 Jul 23;9(7):e20492. doi: 10.2196/20492

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©Lea Canales, Sebastian Menke, Stephanie Marchesseau, Ariel D’Agostino, Carlos del Rio-Bermudez, Miren Taberna, Jorge Tello. Originally published in JMIR Medical Informatics (https://medinform.jmir.org), 23.07.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Medical Informatics, is properly cited. The complete bibliographic information, a link to the original publication on https://medinform.jmir.org/, as well as this copyright and license information must be included.

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The proposed evaluation methodology consists of five phases that guarantee the evaluation of a clinical natural language processing system against a gold standard providing unbiased performance metrics. NLP: natural language processing, EHR: electronic health record.