Published on in Vol 8, No 1 (2021): Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18942, first published
.
![Feasibility and Convergent Validity of an Activity Tracker for Low Back Pain Within a Clinical Study: Cross-sectional Study Feasibility and Convergent Validity of an Activity Tracker for Low Back Pain Within a Clinical Study: Cross-sectional Study](https://asset.jmir.pub/assets/65e180a71115a1d62657a42a110a160a.png 480w,https://asset.jmir.pub/assets/65e180a71115a1d62657a42a110a160a.png 960w,https://asset.jmir.pub/assets/65e180a71115a1d62657a42a110a160a.png 1920w,https://asset.jmir.pub/assets/65e180a71115a1d62657a42a110a160a.png 2500w)
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