Published on in Vol 9 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/48040, first published
.
![Development and Promotion of an mHealth App for Adolescents Based on the European Code Against Cancer: Retrospective Cohort Study Development and Promotion of an mHealth App for Adolescents Based on the European Code Against Cancer: Retrospective Cohort Study](https://asset.jmir.pub/assets/ebc07e70daa2cb2c0d8913be41d559df.png 480w,https://asset.jmir.pub/assets/ebc07e70daa2cb2c0d8913be41d559df.png 960w,https://asset.jmir.pub/assets/ebc07e70daa2cb2c0d8913be41d559df.png 1920w,https://asset.jmir.pub/assets/ebc07e70daa2cb2c0d8913be41d559df.png 2500w)
There are currently no tweets available for this article within the specified range.