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. 2019 Oct 8;27(1):109–118. doi: 10.1093/jamia/ocz165

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© The Author(s) 2019. Published by Oxford University Press on behalf of the American Medical Informatics Association.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contactjournals.permissions@oup.com

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Figure 1. — Diagram of the Leaf instance deployed at the University of Washington Medicine Enterprise Data Warehouse. Data from electronic medical records and other clinical systems flow into the enterprise data warehouse. Leaf, REDCap, and other tools are deployed in modular fashion to 41 query the enterprise data warehouse and interoperate for data extraction and analysis. API: application programming interface.