Published on in Vol 7, No 8 (2019): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11575, first published
.
![An App to Improve Eating Habits of Adolescents and Young Adults (Challenge to Go): Systematic Development of a Theory-Based and Target Group–Adapted Mobile App Intervention An App to Improve Eating Habits of Adolescents and Young Adults (Challenge to Go): Systematic Development of a Theory-Based and Target Group–Adapted Mobile App Intervention](https://asset.jmir.pub/assets/b60cf8f6d6a55185051ab0a09201fcf1.png 480w,https://asset.jmir.pub/assets/b60cf8f6d6a55185051ab0a09201fcf1.png 960w,https://asset.jmir.pub/assets/b60cf8f6d6a55185051ab0a09201fcf1.png 1920w,https://asset.jmir.pub/assets/b60cf8f6d6a55185051ab0a09201fcf1.png 2500w)
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