. 2020 Jun 25;9(6):e19172. doi: 10.2196/19172
©Carl J Brandt, Jeanette Reffstrup Christensen, Jørgen T Lauridsen, Jesper Bo Nielsen, Jens Søndergaard, Camilla Sortsø. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 25.06.2020.
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Figure 1.
Illustration of participant flow.