Published on in Vol 8, No 11 (2020): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18659, first published
.
![Characterizing Chronic Pain Episodes in Clinical Text at Two Health Care Systems: Comprehensive Annotation and Corpus Analysis Characterizing Chronic Pain Episodes in Clinical Text at Two Health Care Systems: Comprehensive Annotation and Corpus Analysis](https://asset.jmir.pub/assets/dc62e8ff3df3a76c0b580f062a301e9c.png 480w,https://asset.jmir.pub/assets/dc62e8ff3df3a76c0b580f062a301e9c.png 960w,https://asset.jmir.pub/assets/dc62e8ff3df3a76c0b580f062a301e9c.png 1920w,https://asset.jmir.pub/assets/dc62e8ff3df3a76c0b580f062a301e9c.png 2500w)
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