[This corrects the article DOI: 10.2196/12980.].
©Tiernan J Cahill, Blake Wertz, Qiankun Zhong, Andrew Parlato, John Donegan, Rebecca Forman, Supriya Manot, Tianyi Wu, Yazhu Xu, James J Cummings, Tricia Norkunas Cunningham, Catharine Wang. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 13.08.2019.