Published on in Vol 11 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/44945, first published
.
![The Implementation of a GPS-Based Location-Tracking Smartphone App in South Africa to Improve Engagement in HIV Care: Randomized Controlled Trial The Implementation of a GPS-Based Location-Tracking Smartphone App in South Africa to Improve Engagement in HIV Care: Randomized Controlled Trial](https://asset.jmir.pub/assets/fcbd0584219b5c774dcb2cb8bab0bb93.png 480w,https://asset.jmir.pub/assets/fcbd0584219b5c774dcb2cb8bab0bb93.png 960w,https://asset.jmir.pub/assets/fcbd0584219b5c774dcb2cb8bab0bb93.png 1920w,https://asset.jmir.pub/assets/fcbd0584219b5c774dcb2cb8bab0bb93.png 2500w)
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