. 2018 Feb 7;7(2):e22. doi: 10.2196/resprot.8490
©Jördis Maria Zill, Jörg Dirmaier, Matthias Augustin, Sarah Dwinger, Eva Christalle, Martin Härter, Ulrich Mrowietz. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 07.02.2018.
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Figure 2.
Survey flow-chart for the questionnaire. Calculated with an expected return rate of 40%.