The Use of Twitter to Track Levels of Disease Activity and Public Concern in the U.S. during the Influenza A H1N1 Pandemic
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{"title"=>"The use of Twitter to track levels of disease activity and public concern in the U.S. during the influenza A H1N1 pandemic", "type"=>"journal", "authors"=>[{"first_name"=>"Alessio", "last_name"=>"Signorini", "scopus_author_id"=>"7003701620"}, {"first_name"=>"Alberto Maria", "last_name"=>"Segre", "scopus_author_id"=>"7006391405"}, {"first_name"=>"Philip M.", "last_name"=>"Polgreen", "scopus_author_id"=>"6507236020"}], "year"=>2011, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"21573238", "doi"=>"10.1371/journal.pone.0019467", "sgr"=>"79955757514", "arxiv"=>"1204.6441v1", "isbn"=>"1932-6203", "scopus"=>"2-s2.0-79955757514", "issn"=>"19326203", "pui"=>"361732869"}, "id"=>"f7b48225-6295-39ef-9ff0-70c475d4039c", "abstract"=>"Twitter is a free social networking and micro-blogging service that enables its millions of users to send and read each other's \"tweets,\" or short, 140-character messages. The service has more than 190 million registered users and processes about 55 million tweets per day. Useful information about news and geopolitical events lies embedded in the Twitter stream, which embodies, in the aggregate, Twitter users' perspectives and reactions to current events. By virtue of sheer volume, content embedded in the Twitter stream may be useful for tracking or even forecasting behavior if it can be extracted in an efficient manner. In this study, we examine the use of information embedded in the Twitter stream to (1) track rapidly-evolving public sentiment with respect to H1N1 or swine flu, and (2) track and measure actual disease activity. We also show that Twitter can be used as a measure of public interest or concern about health-related events. Our results show that estimates of influenza-like illness derived from Twitter chatter accurately track reported disease levels.", "link"=>"http://www.mendeley.com/research/twitter-track-levels-disease-activity-public-concern-during-influenza-h1n1-pandemic", "reader_count"=>515, "reader_count_by_academic_status"=>{"Unspecified"=>11, "Professor > Associate Professor"=>32, "Librarian"=>6, "Researcher"=>88, "Student > Doctoral Student"=>30, "Student > Ph. D. Student"=>131, "Student > Postgraduate"=>18, "Student > Master"=>100, "Other"=>19, "Student > Bachelor"=>46, "Lecturer"=>14, "Lecturer > Senior Lecturer"=>4, "Professor"=>16}, "reader_count_by_user_role"=>{"Unspecified"=>11, "Professor > Associate Professor"=>32, "Librarian"=>6, "Researcher"=>88, "Student > Doctoral Student"=>30, "Student > Ph. D. 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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/778558"], "description"=>"<p>Percentage of observed H1N1 vaccination-related tweets containing terms\n related to risk perception (red line) or Guillain–Barré\n syndrome (green line).</p>", "links"=>[], "tags"=>["tweet", "observed", "h1n1", "vaccination-related"], "article_id"=>448933, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g008", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Risk_and_GBS_Related_Tweet_Volume_as_Percentage_of_Observed_H1N1____Vaccination_Related_Tweets_/448933", "title"=>"Risk-and-GBS-Related Tweet Volume as Percentage of Observed H1N1\n Vaccination-Related Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:44:02"}
  • {"files"=>["https://ndownloader.figshare.com/files/778339"], "description"=>"<p>Percentage of observed influenza-related tweets containing\n vaccination-related terms.</p>", "links"=>[], "tags"=>["tweet", "observed", "h1n1-related"], "article_id"=>448711, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g006", "stats"=>{"downloads"=>2, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Vaccination_Tweet_Volume_as_Percentage_of_Observed_H1N1_Related____Tweets_/448711", "title"=>"Vaccination Tweet Volume as Percentage of Observed H1N1-Related\n Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:42:44"}
  • {"files"=>["https://ndownloader.figshare.com/files/778247"], "description"=>"<p>Percentage of observed influenza-related tweets containing references to\n specific anti-viral drugs.</p>", "links"=>[], "tags"=>["tweet", "observed", "h1n1-related"], "article_id"=>448616, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g005", "stats"=>{"downloads"=>1, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Drug_Related_Tweet_Volume_as_Percentage_of_Observed_H1N1_Related____Tweets_/448616", "title"=>"Drug-Related Tweet Volume as Percentage of Observed H1N1-Related\n Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:42:12"}
  • {"files"=>["https://ndownloader.figshare.com/files/777869"], "description"=>"<p>The red line represents the number of H1N1-related tweets (i.e.,\n containing keywords <i>swine, flu, influenza,</i> or\n <i>h1n1)</i> as a percentage of the observed daily tweets,\n while the green line shows the number of confirmed or probable H1N1\n cases. Note that the volume of tweets pertaining to influenza steadily\n declined even though the number of cases continued to grow, reflecting a\n lessening of public concern about the severity of the pandemic.</p>", "links"=>[], "tags"=>["counts", "h1n1-related", "tweet", "observed"], "article_id"=>448236, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g002", "stats"=>{"downloads"=>3, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Case_Counts_and_H1N1_Related_Tweet_Volume_as_Percentage_of_Observed____Tweet_Volume_/448236", "title"=>"Case Counts and H1N1-Related Tweet Volume as Percentage of Observed\n Tweet Volume.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:40:14"}
  • {"files"=>["https://ndownloader.figshare.com/files/778662"], "description"=>"<p>The green line shows the CDC's measured ILI% for the 33-week\n period starting in Week 40 (October 2009) through Week 20 (May 2010).\n The red line shows the output of a leaving-one-out cross-validation test\n of our SVM-based estimator. Each estimated datapoint is produced by\n applying a model to the specified week of tweets after training on the\n other 32 weeks of data and their respective CDC ILI% values.</p>", "links"=>[], "tags"=>["reported"], "article_id"=>449040, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g009", "stats"=>{"downloads"=>1, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Weekly_Reported_and_Estimated_ILI_Nationwide_/449040", "title"=>"Weekly Reported and Estimated ILI% (Nationwide).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:44:35"}
  • {"files"=>["https://ndownloader.figshare.com/files/778128"], "description"=>"<p>Percentage of observed influenza-related tweets that also contain\n travel-related keywords (red and green lines) or pork\n consumption-related keywords (blue line). The relative rate of public\n concern about pork consumption fell steadily during the month of May, in\n contrast to increased public concerns about travel-related disease\n transmission.</p>", "links"=>[], "tags"=>["consumption-related", "tweet", "of", "observed", "h1n1-related"], "article_id"=>448497, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g004", "stats"=>{"downloads"=>2, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Travel_and_Consumption_Related_Tweet_Volume_as_Percentage_of____Observed_H1N1_Related_Tweets_/448497", "title"=>"Travel- and Consumption-Related Tweet Volume as Percentage of\n Observed H1N1-Related Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:41:34"}
  • {"files"=>["https://ndownloader.figshare.com/files/778759"], "description"=>"<p>The green line shows the CDC's measured ILI% for Region 2\n (New Jersey/New York) for the 33-week period starting in Week 40\n (October 2009) through Week 20 (May 2010). The red line shows the output\n of our SVM-based estimator when applied to Region 2 tweet data. The\n estimator is first trained on all data from outside Region 2 and their\n respective region's CDC ILI% values.</p>", "links"=>[], "tags"=>["reported"], "article_id"=>449138, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g010", "stats"=>{"downloads"=>1, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Weekly_Reported_and_Estimated_ILI_CDC_Region_2_/449138", "title"=>"Weekly Reported and Estimated ILI% (CDC Region 2).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:45:08"}
  • {"files"=>["https://ndownloader.figshare.com/files/778449"], "description"=>"<p>Percentage of observed H1N1 vaccination-related tweets containing terms\n related to pregnancy (green line) or vaccine shortage (red line). The\n relatively low rates observed may indicate either a lack of public\n concern or a lack of public awareness.</p>", "links"=>[], "tags"=>["tweet", "observed", "h1n1", "vaccination-related"], "article_id"=>448819, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g007", "stats"=>{"downloads"=>5, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Shortage_and_Pregnancy_Related_Tweet_Volume_as_Percentage_of_Observed____H1N1_Vaccination_Related_Tweets_/448819", "title"=>"Shortage-and-Pregnancy-Related Tweet Volume as Percentage of Observed\n H1N1 Vaccination-Related Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:43:21"}
  • {"files"=>["https://ndownloader.figshare.com/files/777714"], "description"=>"<p>Color-coded dots represent tweets issued by users (shown at the\n users' self-declared home location). Hovering over the dot displays\n the content of the tweet; here, the user name is intentionally obscured.\n A client-side JavaScript application updates the map in near-real time,\n showing the 500 most recent tweets matching the preselected\n influenza-related keywords.</p>", "links"=>[], "tags"=>["twitter"], "article_id"=>448087, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g001", "stats"=>{"downloads"=>2, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Influenza_Related_Twitter_Map_/448087", "title"=>"Influenza-Related Twitter Map.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:39:26"}
  • {"files"=>["https://ndownloader.figshare.com/files/778015"], "description"=>"<p>Percentage of observed influenza-related tweets that also contain\n hand-hygiene-related keywords (red line) or mask-related keywords (green\n line). Spikes correspond to increased interest in these particular\n disease countermeasures, perhaps in reaction to, e.g., a report in the\n popular media.</p>", "links"=>[], "tags"=>["mask-related", "tweet", "observed", "h1n1-related"], "article_id"=>448383, "categories"=>["Information And Computing Sciences", "Medicine", "Infectious Diseases", "Biotechnology"], "users"=>["Alessio Signorini", "Alberto Maria Segre", "Philip M. Polgreen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0019467.g003", "stats"=>{"downloads"=>5, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Hand_Hygiene_and_Mask_Related_Tweet_Volume_as_Percentage_of_Observed____H1N1_Related_Tweets_/448383", "title"=>"Hand-Hygiene- and Mask-Related Tweet Volume as Percentage of Observed\n H1N1-Related Tweets.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 18:40:59"}

PMC Usage Stats | Further Information

  • {"scanned-page-browse"=>"0", "month"=>"5", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"49", "unique-ip"=>"45", "pdf"=>"23", "year"=>"2011", "figure"=>"5", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"204", "year"=>"2011", "pdf"=>"60", "unique-ip"=>"167", "figure"=>"22", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"7", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"137", "unique-ip"=>"93", "pdf"=>"22", "year"=>"2011", "figure"=>"7", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"8", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"47", "year"=>"2011", "pdf"=>"22", "unique-ip"=>"44", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"9", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"46", "unique-ip"=>"40", "pdf"=>"18", "year"=>"2011", "figure"=>"10", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"10", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"360", "year"=>"2011", "pdf"=>"37", "unique-ip"=>"220", "figure"=>"44", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"11", "cited-by"=>"2", "abstract"=>"0", "full-text"=>"112", "unique-ip"=>"84", "pdf"=>"24", "year"=>"2011", "figure"=>"15", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"12", "scanned-page-browse"=>"0", "cited-by"=>"1", "abstract"=>"2", "full-text"=>"59", "year"=>"2011", "pdf"=>"17", "unique-ip"=>"62", "figure"=>"4", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"1", "cited-by"=>"3", "abstract"=>"0", "full-text"=>"64", "unique-ip"=>"59", "pdf"=>"34", "year"=>"2012", "figure"=>"6", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"2", "scanned-page-browse"=>"0", "cited-by"=>"2", "abstract"=>"6", "full-text"=>"49", "year"=>"2012", "pdf"=>"24", "unique-ip"=>"47", "figure"=>"6", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"3", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"66", "unique-ip"=>"50", "pdf"=>"25", "year"=>"2012", "figure"=>"22", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"4", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"26", "year"=>"2012", "pdf"=>"9", "unique-ip"=>"25", "figure"=>"1", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"scanned-page-browse"=>"0", "month"=>"5", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"40", "unique-ip"=>"33", "pdf"=>"12", "year"=>"2012", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"40", "year"=>"2012", "pdf"=>"6", "unique-ip"=>"39", "figure"=>"18", "scanned-summary"=>"0", "supp-data"=>"0"}
  • {"unique-ip"=>"38", "full-text"=>"53", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"13", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"7"}
  • {"unique-ip"=>"41", "full-text"=>"51", "pdf"=>"16", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"10", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"8"}
  • {"unique-ip"=>"36", "full-text"=>"37", "pdf"=>"17", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2012", "month"=>"9"}
  • {"unique-ip"=>"52", "full-text"=>"53", "pdf"=>"12", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"20", "supp-data"=>"0", "cited-by"=>"3", "year"=>"2012", "month"=>"10"}
  • {"unique-ip"=>"33", "full-text"=>"35", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"16", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"12"}
  • {"unique-ip"=>"259", "full-text"=>"303", "pdf"=>"9", "abstract"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"49", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2013", "month"=>"1"}
  • {"unique-ip"=>"48", "full-text"=>"48", "pdf"=>"10", "abstract"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2013", "month"=>"3"}
  • {"unique-ip"=>"73", "full-text"=>"78", "pdf"=>"10", "abstract"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"15", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2013", "month"=>"2"}
  • {"unique-ip"=>"58", "full-text"=>"67", "pdf"=>"16", "abstract"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"31", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2013", "month"=>"4"}
  • {"unique-ip"=>"27", "full-text"=>"37", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2012", "month"=>"11"}
  • {"unique-ip"=>"47", "full-text"=>"57", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"10", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"5"}
  • {"unique-ip"=>"38", "full-text"=>"51", "pdf"=>"16", "abstract"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"6"}
  • {"unique-ip"=>"49", "full-text"=>"66", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"7"}
  • {"unique-ip"=>"29", "full-text"=>"25", "pdf"=>"10", "abstract"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"8"}
  • {"unique-ip"=>"34", "full-text"=>"33", "pdf"=>"7", "abstract"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2013", "month"=>"9"}
  • {"unique-ip"=>"48", "full-text"=>"51", "pdf"=>"10", "abstract"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"13", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"10"}
  • {"unique-ip"=>"50", "full-text"=>"56", "pdf"=>"16", "abstract"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"11"}
  • {"unique-ip"=>"43", "full-text"=>"56", "pdf"=>"4", "abstract"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"12"}
  • {"unique-ip"=>"40", "full-text"=>"45", "pdf"=>"11", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2014", "month"=>"1"}
  • {"unique-ip"=>"40", "full-text"=>"45", "pdf"=>"13", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"12", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"2"}
  • {"unique-ip"=>"51", "full-text"=>"57", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"16", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2014", "month"=>"3"}
  • {"unique-ip"=>"45", "full-text"=>"60", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"5"}
  • {"unique-ip"=>"40", "full-text"=>"56", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"6"}
  • {"unique-ip"=>"65", "full-text"=>"81", "pdf"=>"11", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2014", "month"=>"4"}
  • {"unique-ip"=>"65", "full-text"=>"94", "pdf"=>"12", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"4"}
  • {"unique-ip"=>"71", "full-text"=>"64", "pdf"=>"13", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"32", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2015", "month"=>"5"}
  • {"unique-ip"=>"86", "full-text"=>"86", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"14", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2015", "month"=>"6"}
  • {"unique-ip"=>"41", "full-text"=>"64", "pdf"=>"15", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"7"}
  • {"unique-ip"=>"42", "full-text"=>"51", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"12", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"3"}
  • {"unique-ip"=>"62", "full-text"=>"49", "pdf"=>"17", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"11", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"2"}
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