Published on in Vol 4, No 4 (2018): Oct-Dec
![Characterizing Tweet Volume and Content About Common Health Conditions Across Pennsylvania: Retrospective Analysis Characterizing Tweet Volume and Content About Common Health Conditions Across Pennsylvania: Retrospective Analysis](https://asset.jmir.pub/assets/2051a5657febf983f2c3dcace5460915.png 480w,https://asset.jmir.pub/assets/2051a5657febf983f2c3dcace5460915.png 960w,https://asset.jmir.pub/assets/2051a5657febf983f2c3dcace5460915.png 1920w,https://asset.jmir.pub/assets/2051a5657febf983f2c3dcace5460915.png 2500w)
1 Center for Digital Health, Penn Medicine, Philadelphia, PA, United States
2 Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, United States
3 Center for Health Equity Research and Promotion, University of Pennsylvania, Philadelphia, PA, United States
4 Population Studies Center, School of Arts and Science, University of Pennsylvania, Philadelphia, PA, United States
5 Department of Medical Ethics and Policy, University of Pennsylvania, Philadelphia, PA, United States
6 Philadelphia VA Medical Center, Philadelphia, PA, United States
7 Department of General Internal Medicine, University of Pennsylvania, Philadelphia, PA, United States
8 Department of Computer and Information Science, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
9 Department of Emergency Medicine, University of Pennsylvania, Philadelphia, PA, United States