. 2019 Oct 24;3(4):e13013. doi: 10.2196/13013
©Ling-Jun Li, Izzuddin M Aris, Wee Meng Han, Kok Hian Tan. Originally published in JMIR Formative Research (http://formative.jmir.org), 24.10.2019.
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Figure 1.
Study flow of the randomized controlled trial.