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. 2022 Feb 18;24(2):e29279. doi: 10.2196/29279

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©Varun Suraj, Catherine Del Vecchio Fitz, Laura B Kleiman, Suresh K Bhavnani, Chinmay Jani, Surbhi Shah, Rana R McKay, Jeremy Warner, Gil Alterovitz. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 18.02.2022.

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

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Architecture diagram of the interactions between the Veterans Affairs and Center for Medicare and Medicaid Services electronic health record systems, SNOMED/International Classification of Diseases-tenth version codes, and the COVID-19 Open Research Dataset. CMS: Center for Medicare and Medicaid Services; CORD-19: COVID-19 Open Research Dataset; ICD-10: International Classification of Diseases-tenth version; SNOMED-CT: SNOMED Clinical Terms; VA: Veterans Affairs.