. 2022 Jan 25;6(1):e33798. doi: 10.2196/33798
©Alexander Wilhelm Gorny, Wei Chian Douglas Chee, Falk Müller-Riemenschneider. Originally published in JMIR Formative Research (https://formative.jmir.org), 25.01.2022.
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Figure 1.
Recruitment for follow-up study, 6 months after enrollment into the national steps challenge.