[This corrects the article DOI: 10.2196/jmir.8330.].
©Thuss Sanguansak, Katharine E Morley, Michael G Morley, Kavin Thinkhamrop, Jaruwan Thuanman, Isha Agarwal. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.12.2018.