Published on in Vol 4, No 1 (2018): Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8581, first published
.
![Web-Based Survey Application to Collect Contextually Relevant Geographic Data With Exposure Times: Application Development and Feasibility Testing Web-Based Survey Application to Collect Contextually Relevant Geographic Data With Exposure Times: Application Development and Feasibility Testing](https://asset.jmir.pub/assets/cecd1c36833d1c5606dc38631721595b.jpg 480w,https://asset.jmir.pub/assets/cecd1c36833d1c5606dc38631721595b.jpg 960w,https://asset.jmir.pub/assets/cecd1c36833d1c5606dc38631721595b.jpg 1920w,https://asset.jmir.pub/assets/cecd1c36833d1c5606dc38631721595b.jpg 2500w)
1 Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
2 Department of Health, Behavior, and Society, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States
3 Independent Consultant, Warminster, PA, United States