Published on in Vol 5, No 4 (2021): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/25513, first published
.
![A Multiple Health Behavior Change, Self-Monitoring Mobile App for Adolescents: Development and Usability Study of the Health4Life App A Multiple Health Behavior Change, Self-Monitoring Mobile App for Adolescents: Development and Usability Study of the Health4Life App](https://asset.jmir.pub/assets/5f329d76fc3d56dadec635150555f171.png 480w,https://asset.jmir.pub/assets/5f329d76fc3d56dadec635150555f171.png 960w,https://asset.jmir.pub/assets/5f329d76fc3d56dadec635150555f171.png 1920w,https://asset.jmir.pub/assets/5f329d76fc3d56dadec635150555f171.png 2500w)
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