Published on in Vol 3, No 1 (2019): Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10246, first published
.
![Evaluation of a Mobile Device Survey System for Behavioral Risk Factors (SHAPE): App Development and Usability Study Evaluation of a Mobile Device Survey System for Behavioral Risk Factors (SHAPE): App Development and Usability Study](https://asset.jmir.pub/assets/f36c50148491b8f994d99be66993dea2.png 480w,https://asset.jmir.pub/assets/f36c50148491b8f994d99be66993dea2.png 960w,https://asset.jmir.pub/assets/f36c50148491b8f994d99be66993dea2.png 1920w,https://asset.jmir.pub/assets/f36c50148491b8f994d99be66993dea2.png 2500w)
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