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#Healthy Selfies: Exploration of Health Topics on Instagram

topic, we calculate the average proportion, where D is the number of documents: To estimate the prevalence of the coarser categories, we simply define each category’s prevalence of the sum of its topic proportions, where Cj is the set of topics in category j:

Sachin Muralidhara, Michael J. Paul

JMIR Public Health Surveill 2018;4(2):e10150

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Identifying Protective Health Behaviors on Twitter: Observational Study of Travel Advisories and Zika Virus

Paul and Dredze similarly note that individuals often report medications used for symptom relief [4].

Ashlynn R Daughton, Michael J Paul

J Med Internet Res 2019;21(5):e13090

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Social Media as a Sensor of Air Quality and Public Response in China

Shiliang Wang, Michael J Paul, Mark Dredze

J Med Internet Res 2015;17(3):e22

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The Touro 12-Step: A Systematic Guide to Optimizing Survey Research with Online Discussion Boards

Eric J Ip, Mitchell J Barnett, Michael J Tenerowicz, Paul J Perry

J Med Internet Res 2010;12(2):e16

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Comparison of Social Media, Syndromic Surveillance, and Microbiologic Acute Respiratory Infection Data: Observational Study

Ashlynn R Daughton, Rumi Chunara, Michael J Paul

JMIR Public Health Surveill 2020;6(2):e14986

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Parent Satisfaction With the Electronic Medical Record in an Academic Pediatric Rheumatology Practice

Paul Rosen, Steven J. Spalding, Michael J. Hannon, Robert M. Boudreau, C. Kent Kwoh

J Med Internet Res 2011;13(2):e40

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Using Social Media to Perform Local Influenza Surveillance in an Inner-City Hospital: A Retrospective Observational Study

David Andre Broniatowski, Mark Dredze, Michael J Paul, Andrea Dugas

JMIR Public Health Surveill 2015;1(1):e5

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Consumer Participation in Quality Improvements for Chronic Disease Care: Development and Evaluation of an Interactive Patient-Centered Survey to Identify Preferred Service Initiatives

Elizabeth A Fradgley, Christine L Paul, Jamie Bryant, Ian A Roos, Frans A Henskens, David J Paul

J Med Internet Res 2014;16(12):e292

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Characterizing the (Perceived) Newsworthiness of Health Science Articles: A Data-Driven Approach

Ye Zhang, Erin Willis, Michael J Paul, Noémie Elhadad, Byron C Wallace

JMIR Med Inform 2016;4(3):e27

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Like or Dislike? Impact of Facebook on Ewing Sarcoma Treatment

Paul Ruckenstuhl, Michael Schippinger, Paul Liebmann, Andreas Leithner, Gerwin Bernhardt

JMIR Cancer 2016;2(2):e11

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