. 2020 Jan 7;22(1):e13346. doi: 10.2196/13346
©Doerte Behrendt, David Daniel Ebert, Kai Spiegelhalder, Dirk Lehr. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 07.01.2020.
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Figure 1.
Flow of study participants. iCBT-I: internet-delivered cognitive behavioral therapy for insomnia.