Published on in Vol 9, No 3 (2022): Jul-Sep
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/35125, first published
.
![Implementation of Smartphone Systems to Improve Quality of Life for People With Substance Use Disorder: Interim Report on a Randomized Controlled Trial Implementation of Smartphone Systems to Improve Quality of Life for People With Substance Use Disorder: Interim Report on a Randomized Controlled Trial](https://asset.jmir.pub/assets/6696626cf1d20bbe33fac33e1e0bb3e1.png 480w,https://asset.jmir.pub/assets/6696626cf1d20bbe33fac33e1e0bb3e1.png 960w,https://asset.jmir.pub/assets/6696626cf1d20bbe33fac33e1e0bb3e1.png 1920w,https://asset.jmir.pub/assets/6696626cf1d20bbe33fac33e1e0bb3e1.png 2500w)
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