Published on in Vol 6 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/42265, first published
.
![The Effectiveness of an After-school Sport Sampling Intervention on Urban Middle School Youth in the Midwest: Posttest-Only Study The Effectiveness of an After-school Sport Sampling Intervention on Urban Middle School Youth in the Midwest: Posttest-Only Study](https://asset.jmir.pub/assets/d34c5f453d37a24428c3892c4281fb55.png 480w,https://asset.jmir.pub/assets/d34c5f453d37a24428c3892c4281fb55.png 960w,https://asset.jmir.pub/assets/d34c5f453d37a24428c3892c4281fb55.png 1920w,https://asset.jmir.pub/assets/d34c5f453d37a24428c3892c4281fb55.png 2500w)
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