. 2021 May 14;10(5):e27088. doi: 10.2196/27088
©Jan Mathis Elling, Rik Crutzen, Reinskje Talhout, Hein de Vries. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 14.05.2021.
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Figure 1.
Flowchart of the study design.