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. 2021 Sep 30;23(9):e31122. doi: 10.2196/31122

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©Junghwan Lee, Jae Hyun Kim, Cong Liu, George Hripcsak, Karthik Natarajan, Casey Ta, Chunhua Weng. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 30.09.2021.

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 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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Total counts across all concepts in the (A) condition domain, (B) drug domain, (C) procedure domain, and (D) the total visits per year between 2014 and 2019 for the general and influenza cohort.