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. 2020 Oct 27;8(10):e22108. doi: 10.2196/22108

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©Abhishek Pratap, Daniel Grant, Ashok Vegesna, Meghasyam Tummalacherla, Stanley Cohan, Chinmay Deshpande, Lara Mangravite, Larsson Omberg. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 27.10.2020.

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 mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Geographic locations of participants. Dots (n=329) represent the location of those participants who continued in the study beyond initial enrollment and provided the first three digits of their zip code during the collection of demographic information on Day 2. One dot is included for each location, with participants with the same first three digits of the zip code shown under the same dot.