Published on in Vol 25 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/40569, first published
.
![Pregex: Rule-Based Detection and Extraction of Twitter Data in Pregnancy Pregex: Rule-Based Detection and Extraction of Twitter Data in Pregnancy](https://asset.jmir.pub/assets/370f7a8741f005360bebf1aa3bab7de4.png 480w,https://asset.jmir.pub/assets/370f7a8741f005360bebf1aa3bab7de4.png 960w,https://asset.jmir.pub/assets/370f7a8741f005360bebf1aa3bab7de4.png 1920w,https://asset.jmir.pub/assets/370f7a8741f005360bebf1aa3bab7de4.png 2500w)
1 Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
2 Department of Computational Biomedicine, Cedars-Sinai Medical Center, West Hollywood, CA, United States