. 2019 Sep 27;21(9):e13947. doi: 10.2196/13947
©Kymeng Tang, Kathrin Gerling, Wei Chen, Luc Geurts. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 27.09.2019
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Figure 2.
Taxonomy of the identified systems regarding intervention purpose and technology. SMS: standard message service.