The PHQ-PD as a Screening Tool for Panic Disorder in the Primary Care Setting in Spain
Publication Date
August 15, 2016
Journal
PLOS ONE
Authors
Roger Muñoz Navarro, Antonio Cano Vindel, Cristina Mae Wood, Paloma Ruíz Rodríguez, et al
Volume
11
Issue
8
Pages
e0161145
DOI
https://dx.plos.org/10.1371/journal.pone.0161145
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0161145
Scopus
84986882172
Mendeley
http://www.mendeley.com/research/phqpd-screening-tool-panic-disorder-primary-care-setting-spain-3
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"id"=>"557a61ea-b65b-3e27-83d1-793745b3e0bf", "abstract"=>"INTRODUCTION Panic disorder is a common anxiety disorder and is highly prevalent in Spanish primary care centres. The use of validated tools can improve the detection of panic disorder in primary care populations, thus enabling referral for specialized treatment. The aim of this study is to determine the accuracy of the Patient Health Questionnaire-Panic Disorder (PHQ-PD) as a screening and diagnostic tool for panic disorder in Spanish primary care centres. METHOD We compared the psychometric properties of the PHQ-PD to the reference standard, the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) interview. General practitioners referred 178 patients who completed the entire PHQ test, including the PHQ-PD, to undergo the SCID-I. The sensitivity, specificity, positive and negative predictive values and positive and negative likelihood ratios of the PHQ-PD were assessed. RESULTS The operating characteristics of the PHQ-PD are moderate. The best cut-off score was 5 (sensitivity .77, specificity .72). Modifications to the questionnaire's algorithms improved test characteristics (sensitivity .77, specificity .72) compared to the original algorithm. The screening question alone yielded the highest sensitivity score (.83). CONCLUSION Although the modified algorithm of the PHQ-PD only yielded moderate results as a diagnostic test for panic disorder, it was better than the original. Using only the first question of the PHQ-PD showed the best psychometric properties (sensitivity). Based on these findings, we suggest the use of the screening questions for screening purposes and the modified algorithm for diagnostic purposes.", "link"=>"http://www.mendeley.com/research/phqpd-screening-tool-panic-disorder-primary-care-setting-spain-3", "reader_count"=>12, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Librarian"=>1, "Student > Doctoral Student"=>1, "Researcher"=>1, "Student > Postgraduate"=>1, "Student > Master"=>2, "Other"=>1, "Student > Bachelor"=>2, "Professor"=>2}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Librarian"=>1, "Student > Doctoral Student"=>1, "Researcher"=>1, "Student > Postgraduate"=>1, "Student > Master"=>2, "Other"=>1, "Student > Bachelor"=>2, "Professor"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Medicine and Dentistry"=>3, "Psychology"=>7}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>3}, "Psychology"=>{"Psychology"=>7}, "Unspecified"=>{"Unspecified"=>2}}, "group_count"=>3}

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  • {"month"=>"9", "year"=>"2016", "pdf_views"=>"38", "xml_views"=>"0", "html_views"=>"305"}
  • {"month"=>"10", "year"=>"2016", "pdf_views"=>"16", "xml_views"=>"0", "html_views"=>"65"}
  • {"month"=>"11", "year"=>"2016", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"34"}
  • {"month"=>"12", "year"=>"2016", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"62"}
  • {"month"=>"1", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"1", "html_views"=>"57"}
  • {"month"=>"2", "year"=>"2017", "pdf_views"=>"11", "xml_views"=>"0", "html_views"=>"61"}
  • {"month"=>"3", "year"=>"2017", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"52"}
  • {"month"=>"4", "year"=>"2017", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"63"}
  • {"month"=>"5", "year"=>"2017", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"58"}
  • {"month"=>"6", "year"=>"2017", "pdf_views"=>"3", "xml_views"=>"3", "html_views"=>"67"}
  • {"month"=>"7", "year"=>"2017", "pdf_views"=>"13", "xml_views"=>"5", "html_views"=>"53"}
  • {"month"=>"8", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"2", "html_views"=>"53"}
  • {"month"=>"9", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"3", "html_views"=>"56"}
  • {"month"=>"10", "year"=>"2017", "pdf_views"=>"9", "xml_views"=>"0", "html_views"=>"65"}
  • {"month"=>"11", "year"=>"2017", "pdf_views"=>"10", "xml_views"=>"0", "html_views"=>"174"}
  • {"month"=>"12", "year"=>"2017", "pdf_views"=>"4", "xml_views"=>"2", "html_views"=>"142"}
  • {"month"=>"1", "year"=>"2018", "pdf_views"=>"7", "xml_views"=>"2", "html_views"=>"63"}
  • {"month"=>"2", "year"=>"2018", "pdf_views"=>"6", "xml_views"=>"1", "html_views"=>"53"}
  • {"month"=>"3", "year"=>"2018", "pdf_views"=>"10", "xml_views"=>"1", "html_views"=>"49"}
  • {"month"=>"4", "year"=>"2018", "pdf_views"=>"15", "xml_views"=>"0", "html_views"=>"82"}
  • {"month"=>"5", "year"=>"2018", "pdf_views"=>"10", "xml_views"=>"1", "html_views"=>"62"}
  • {"month"=>"6", "year"=>"2018", "pdf_views"=>"10", "xml_views"=>"4", "html_views"=>"52"}
  • {"month"=>"7", "year"=>"2018", "pdf_views"=>"5", "xml_views"=>"3", "html_views"=>"41"}
  • {"month"=>"8", "year"=>"2018", "pdf_views"=>"4", "xml_views"=>"2", "html_views"=>"77"}
  • {"month"=>"9", "year"=>"2018", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"42"}
  • {"month"=>"10", "year"=>"2018", "pdf_views"=>"17", "xml_views"=>"2", "html_views"=>"66"}
  • {"month"=>"11", "year"=>"2018", "pdf_views"=>"8", "xml_views"=>"2", "html_views"=>"115"}
  • {"month"=>"12", "year"=>"2018", "pdf_views"=>"2", "xml_views"=>"0", "html_views"=>"53"}
  • {"month"=>"1", "year"=>"2019", "pdf_views"=>"7", "xml_views"=>"3", "html_views"=>"32"}
  • {"month"=>"2", "year"=>"2019", "pdf_views"=>"4", "xml_views"=>"2", "html_views"=>"27"}
  • {"month"=>"3", "year"=>"2019", "pdf_views"=>"6", "xml_views"=>"2", "html_views"=>"45"}
  • {"month"=>"4", "year"=>"2019", "pdf_views"=>"15", "xml_views"=>"1", "html_views"=>"31"}
  • {"month"=>"5", "year"=>"2019", "pdf_views"=>"15", "xml_views"=>"1", "html_views"=>"29"}
  • {"month"=>"6", "year"=>"2019", "pdf_views"=>"25", "xml_views"=>"1", "html_views"=>"15"}
  • {"month"=>"7", "year"=>"2019", "pdf_views"=>"11", "xml_views"=>"2", "html_views"=>"18"}
  • {"month"=>"8", "year"=>"2019", "pdf_views"=>"13", "xml_views"=>"2", "html_views"=>"13"}
  • {"month"=>"9", "year"=>"2019", "pdf_views"=>"8", "xml_views"=>"0", "html_views"=>"24"}
  • {"month"=>"10", "year"=>"2019", "pdf_views"=>"17", "xml_views"=>"1", "html_views"=>"32"}
  • {"month"=>"11", "year"=>"2019", "pdf_views"=>"9", "xml_views"=>"1", "html_views"=>"38"}
  • {"month"=>"12", "year"=>"2019", "pdf_views"=>"9", "xml_views"=>"9", "html_views"=>"20"}
  • {"month"=>"1", "year"=>"2020", "pdf_views"=>"13", "xml_views"=>"6", "html_views"=>"29"}
  • {"month"=>"2", "year"=>"2020", "pdf_views"=>"10", "xml_views"=>"2", "html_views"=>"41"}
  • {"month"=>"3", "year"=>"2020", "pdf_views"=>"11", "xml_views"=>"2", "html_views"=>"43"}
  • {"month"=>"4", "year"=>"2020", "pdf_views"=>"55", "xml_views"=>"9", "html_views"=>"36"}
  • {"month"=>"5", "year"=>"2020", "pdf_views"=>"34", "xml_views"=>"3", "html_views"=>"31"}
  • {"month"=>"6", "year"=>"2020", "pdf_views"=>"9", "xml_views"=>"4", "html_views"=>"46"}
  • {"month"=>"7", "year"=>"2020", "pdf_views"=>"9", "xml_views"=>"6", "html_views"=>"41"}
  • {"month"=>"8", "year"=>"2020", "pdf_views"=>"1", "xml_views"=>"1", "html_views"=>"50"}
  • {"month"=>"9", "year"=>"2020", "pdf_views"=>"6", "xml_views"=>"6", "html_views"=>"54"}
  • {"month"=>"10", "year"=>"2020", "pdf_views"=>"17", "xml_views"=>"3", "html_views"=>"78"}
  • {"month"=>"11", "year"=>"2020", "pdf_views"=>"18", "xml_views"=>"2", "html_views"=>"98"}
  • {"month"=>"12", "year"=>"2020", "pdf_views"=>"8", "xml_views"=>"8", "html_views"=>"72"}
  • {"month"=>"1", "year"=>"2021", "pdf_views"=>"14", "xml_views"=>"1", "html_views"=>"72"}
  • {"month"=>"2", "year"=>"2021", "pdf_views"=>"22", "xml_views"=>"2", "html_views"=>"77"}
  • {"month"=>"3", "year"=>"2021", "pdf_views"=>"16", "xml_views"=>"8", "html_views"=>"103"}
  • {"month"=>"4", "year"=>"2021", "pdf_views"=>"13", "xml_views"=>"1", "html_views"=>"34"}

PMC Usage Stats

  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
  • {"unique-ip"=>"25", "full-text"=>"25", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
  • {"unique-ip"=>"23", "full-text"=>"30", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"10"}
  • {"unique-ip"=>"19", "full-text"=>"21", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"11"}
  • {"unique-ip"=>"12", "full-text"=>"13", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"12"}
  • {"unique-ip"=>"21", "full-text"=>"21", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"1"}
  • {"unique-ip"=>"27", "full-text"=>"30", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"2"}
  • {"unique-ip"=>"20", "full-text"=>"23", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"3"}
  • {"unique-ip"=>"26", "full-text"=>"27", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"4"}
  • {"unique-ip"=>"28", "full-text"=>"26", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"5"}
  • {"unique-ip"=>"22", "full-text"=>"26", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"6"}
  • {"unique-ip"=>"25", "full-text"=>"26", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"7"}
  • {"unique-ip"=>"43", "full-text"=>"49", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"8"}
  • {"unique-ip"=>"43", "full-text"=>"49", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"9"}
  • {"unique-ip"=>"52", "full-text"=>"57", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"10"}
  • {"unique-ip"=>"83", "full-text"=>"106", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"11"}
  • {"unique-ip"=>"39", "full-text"=>"47", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"12"}
  • {"unique-ip"=>"89", "full-text"=>"104", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"1"}
  • {"unique-ip"=>"2", "full-text"=>"3", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"2"}
  • {"unique-ip"=>"92", "full-text"=>"105", "pdf"=>"12", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"3"}
  • {"unique-ip"=>"88", "full-text"=>"102", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"4", "year"=>"2019", "month"=>"1"}
  • {"unique-ip"=>"125", "full-text"=>"146", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"119", "full-text"=>"131", "pdf"=>"13", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
  • {"unique-ip"=>"90", "full-text"=>"99", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"12"}
  • {"unique-ip"=>"105", "full-text"=>"132", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"4"}
  • {"unique-ip"=>"93", "full-text"=>"99", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"5"}
  • {"unique-ip"=>"85", "full-text"=>"98", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2018", "month"=>"6"}
  • {"unique-ip"=>"85", "full-text"=>"88", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"7"}
  • {"unique-ip"=>"96", "full-text"=>"106", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
  • {"unique-ip"=>"134", "full-text"=>"156", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
  • {"unique-ip"=>"116", "full-text"=>"141", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"172", "full-text"=>"191", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"188", "full-text"=>"214", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"168", "full-text"=>"185", "pdf"=>"13", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2019", "month"=>"5"}
  • {"unique-ip"=>"115", "full-text"=>"139", "pdf"=>"9", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"8"}
  • {"unique-ip"=>"161", "full-text"=>"185", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"3", "year"=>"2019", "month"=>"9"}
  • {"unique-ip"=>"170", "full-text"=>"202", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"10"}
  • {"unique-ip"=>"99", "full-text"=>"117", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"12"}
  • {"unique-ip"=>"156", "full-text"=>"184", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"3", "year"=>"2020", "month"=>"2"}
  • {"unique-ip"=>"158", "full-text"=>"190", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"3"}
  • {"unique-ip"=>"128", "full-text"=>"153", "pdf"=>"9", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"4"}
  • {"unique-ip"=>"126", "full-text"=>"149", "pdf"=>"20", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2020", "month"=>"5"}
  • {"unique-ip"=>"146", "full-text"=>"194", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"6"}
  • {"unique-ip"=>"105", "full-text"=>"119", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2020", "month"=>"7"}
  • {"unique-ip"=>"108", "full-text"=>"128", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"8"}
  • {"unique-ip"=>"168", "full-text"=>"200", "pdf"=>"12", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2020", "month"=>"9"}
  • {"unique-ip"=>"185", "full-text"=>"234", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"10"}
  • {"unique-ip"=>"152", "full-text"=>"186", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"11"}
  • {"unique-ip"=>"95", "full-text"=>"125", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"12"}
  • {"unique-ip"=>"112", "full-text"=>"132", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2021", "month"=>"1"}
  • {"unique-ip"=>"114", "full-text"=>"139", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2021", "month"=>"2"}
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