Published on in Vol 12 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/42119, first published
.
![A Universal Mental Health–Promoting Mobile App for Adolescents: Protocol for a Cluster Randomized Controlled Trial A Universal Mental Health–Promoting Mobile App for Adolescents: Protocol for a Cluster Randomized Controlled Trial](https://asset.jmir.pub/assets/af24c5f8ae6588d95721d24611765dfe.png 480w,https://asset.jmir.pub/assets/af24c5f8ae6588d95721d24611765dfe.png 960w,https://asset.jmir.pub/assets/af24c5f8ae6588d95721d24611765dfe.png 1920w,https://asset.jmir.pub/assets/af24c5f8ae6588d95721d24611765dfe.png 2500w)
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