. 2020 Apr 3;9(4):e16641. doi: 10.2196/16641
©Marian Z M Hurmuz, Stephanie M Jansen-Kosterink, Harm op den Akker, Hermie J Hermens. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 03.04.2020.
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Figure 1.
Study procedures for the first and second rounds of this 9-week observational study with a pretest-posttest design.