Published on in Vol 7, No 8 (2021): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/27892, first published
.
![The Roles of General Health and COVID-19 Proximity in Contact Tracing App Usage: Cross-sectional Survey Study The Roles of General Health and COVID-19 Proximity in Contact Tracing App Usage: Cross-sectional Survey Study](https://asset.jmir.pub/assets/175f611ec9c366860875805a1aaf13ff.png 480w,https://asset.jmir.pub/assets/175f611ec9c366860875805a1aaf13ff.png 960w,https://asset.jmir.pub/assets/175f611ec9c366860875805a1aaf13ff.png 1920w,https://asset.jmir.pub/assets/175f611ec9c366860875805a1aaf13ff.png 2500w)
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