. 2019 Jul 3;7(7):e13436. doi: 10.2196/13436
©Bettina B Hoeppner, Susanne S Hoeppner, Hannah A Carlon, Giselle K Perez, Eric Helmuth, Christopher W Kahler, John F Kelly. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 03.07.2019.
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Figure 3.
App usage per study week. SiS: Smiling Instead of Smoking.