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. 2019 Feb 11;21(2):e11371. doi: 10.2196/11371

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©John Kildea, John Battista, Briana Cabral, Laurie Hendren, David Herrera, Tarek Hijal, Ackeem Joseph. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 11.02.2019.

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 http://www.jmir.org/, as well as this copyright and license information must be included.

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Distribution of the ages and smartphone usage of the 361 cancer patients who participated in our waiting room survey. Overall, 66% (237) of the respondents reported that they use a smartphone. These data demonstrate that a smartphone app would reach a broad patient population. The survey was conducted during the summer of 2016 and repeated during the summer of 2017 in the waiting rooms of our cancer center.