Published on in Vol 6, No 11 (2018): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11012, first published
.
![A Novel Approach to Evaluating Mobile Smartphone Screen Time for iPhones: Feasibility and Preliminary Findings A Novel Approach to Evaluating Mobile Smartphone Screen Time for iPhones: Feasibility and Preliminary Findings](https://asset.jmir.pub/assets/02655fe0df43f9f779f3464b0f3556be.png 480w,https://asset.jmir.pub/assets/02655fe0df43f9f779f3464b0f3556be.png 960w,https://asset.jmir.pub/assets/02655fe0df43f9f779f3464b0f3556be.png 1920w,https://asset.jmir.pub/assets/02655fe0df43f9f779f3464b0f3556be.png 2500w)
1 School of Medicine and Public Health, Department of Pediatrics, University of Wisconsin - Madison, Madison, WI, United States