. 2016 Dec 21;18(12):e326. doi: 10.2196/jmir.6593
©Lindsay Admon, Jessica K Haefner, Giselle E Kolenic, Tammy Chang, Matthew M Davis, Michelle H Moniz. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 21.12.2016.
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Figure 3.
Cost per completed survey among pregnant women recruited via social media–based compared to clinic-based approaches.