. 2012 Nov 28;14(6):e166. doi: 10.2196/jmir.2244
©Michael Schaub, Robin Sullivan, Severin Haug, Lars Stark. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 28.11.2012.
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Figure 2.
Retention in the Snow Control online self-help intervention (n = 96) and the control condition (n = 100).