. 2020 Oct 2;8(10):e18351. doi: 10.2196/18351
©Yilin Chen, Keshet Ronen, Daniel Matemo, Jennifer A Unger, John Kinuthia, Grace John-Stewart, Carol Levin. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 02.10.2020.
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Figure 3.
Cost per contact by fixed and variable costs.