. 2022 Dec 2;6(12):e37609. doi: 10.2196/37609
©Anna Harrison, Johanna Folk, Christopher Rodriguez, Amanda Wallace, Marina Tolou-Shams. Originally published in JMIR Formative Research (https://formative.jmir.org), 02.12.2022.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Formative Research, is properly cited. The complete bibliographic information, a link to the original publication on https://formative.jmir.org, as well as this copyright and license information must be included.
Figure 1.
Facebook advertisements used for pilot testing. Black outline signifies the most cost-effective advertisement.