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. 2021 Aug 3;9(8):e24405. doi: 10.2196/24405

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©Rui Li, Yue Niu, Sarah Robbins Scott, Chu Zhou, Lan Lan, Zhigang Liang, Jia Li. Originally published in JMIR Medical Informatics (https://medinform.jmir.org), 03.08.2021.

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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Trend in the proportion of electronic medical record data users by age group at Xuanwu Hospital, Capital Medical University, Beijing, China between 2016 and 2019.