Published on in Vol 23, No 9 (2021): September
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/31295, first published
.
![Factors Associated With Longitudinal Psychological and Physiological Stress in Health Care Workers During the COVID-19 Pandemic: Observational Study Using Apple Watch Data Factors Associated With Longitudinal Psychological and Physiological Stress in Health Care Workers During the COVID-19 Pandemic: Observational Study Using Apple Watch Data](https://asset.jmir.pub/assets/f2f3ec40e4b6ed5ea2c7f5108b8852b1.png 480w,https://asset.jmir.pub/assets/f2f3ec40e4b6ed5ea2c7f5108b8852b1.png 960w,https://asset.jmir.pub/assets/f2f3ec40e4b6ed5ea2c7f5108b8852b1.png 1920w,https://asset.jmir.pub/assets/f2f3ec40e4b6ed5ea2c7f5108b8852b1.png 2500w)
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