. 2022 Sep 29;5(3):e40171. doi: 10.2196/40171
©Y Alicia Hong, Kang Shen, Huixing Kate Lu, Hsiaoyin Chen, Yang Gong, Van Ta Park, Hae-Ra Han. Originally published in JMIR Aging (https://aging.jmir.org), 29.09.2022.
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Figure 2.
Back-end database: scheduled delivery system.