The Implementation of a GPS-Based Location-Tracking Smartphone App in South Africa to Improve Engagement in HIV Care: Randomized Controlled Trial.

"Conflicts of Interest: None declared."

"This work was funded by the US National Institute of Mental Health (R34 MH118028) and based on earlier work that was funded by the US National Institutes of Health (NIH) under grant P30 AI110527 provided to the Tennessee Center for AIDS Research. TKP was supported by a Collaborative Initiative for Pediatric HIV Education and Research grant from the International AIDS Society and by grant K43TW011943 jointly supported by the Fogarty International Center and National Institute of Mental Health of the NIH. The funders had no role in the study design, data collection and analysis, or decision to publish or preparation of the manuscript. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH or other parties."

"Trial Registration ClinicalTrials.gov NCT03836625; https://clinicaltrials.gov/ct2/show/NCT03836625"