Compass: Clinical Evaluation of a New Instrument for the Diagnosis of Glaucoma
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{"title"=>"Compass: Clinical evaluation of a new instrument for the diagnosis of glaucoma", "type"=>"journal", "authors"=>[{"first_name"=>"Luca", "last_name"=>"Rossetti", "scopus_author_id"=>"57078136300"}, {"first_name"=>"Maurizio", "last_name"=>"Digiuni", "scopus_author_id"=>"55115693000"}, {"first_name"=>"Alberto", "last_name"=>"Rosso", "scopus_author_id"=>"56581527400"}, {"first_name"=>"Roberta", "last_name"=>"Riva", "scopus_author_id"=>"56581461200"}, {"first_name"=>"Giuliano", "last_name"=>"Barbaro", "scopus_author_id"=>"56581563800"}, {"first_name"=>"Michael K.", "last_name"=>"Smolek", "scopus_author_id"=>"6701857497"}, {"first_name"=>"Nicola", "last_name"=>"Orzalesi", "scopus_author_id"=>"56978225300"}, {"first_name"=>"Stefano", "last_name"=>"De Cilla", "scopus_author_id"=>"6506022938"}, {"first_name"=>"Alessandro", "last_name"=>"Autelitano", "scopus_author_id"=>"6602228953"}, {"first_name"=>"Paolo", "last_name"=>"Fogagnolo", "scopus_author_id"=>"6506256494"}], "year"=>2015, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"25807241", "sgr"=>"84926304080", "scopus"=>"2-s2.0-84926304080", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "doi"=>"10.1371/journal.pone.0122157", "pui"=>"603466366", "issn"=>"19326203"}, "id"=>"2b84b399-d99b-3b5f-9d2d-f2fe220d5a44", "abstract"=>"AIMS: To evaluate Compass, a new instrument for glaucoma screening and diagnosis that combines scanning ophthalmoscopy, automated perimetry, and eye tracking.\\n\\nMATERIALS AND METHODS: A total of 320 human subjects (200 normal, 120 with glaucoma) underwent full ophthalmological evaluation and perimetric evaluation using the Humphrey SITA standard 24° test (HFA), and the Compass test that consisted of a full-threshold program on the central 24° with a photograph of the central 30° of the retina. A subgroup of normal subjects and glaucoma patients underwent a second Compass test during the same day in order to study test-retest variability. After exclusion of 30 patients due to protocol rules, a database was created to compare the Compass to the HFA, and to evaluate retinal image quality and fixation stability.\\n\\nRESULTS: The difference in mean sensitivity between Compass and HFA was -1.02 ± 1.55 dB in normal subjects (p<0.001) and -1.01 ± 2.81 dB in glaucoma (p<0.001). Repeatability SD for the average sensitivity was 1.53 for normal subjects and 1.84 for glaucoma. Test time with the Compass was 634±96 s (607±78 for normals, 678±108 for glaucoma). Compass analysis showed the percentage of fixation within the central 1° was 86.6% in normal subjects, and 79.3% in glaucoma patients. Color image quality was sufficient for diagnostic use in >65% of cases; Image-based diagnosis was in accordance with the initial diagnosis in 85% of the subjects.\\n\\nCONCLUSIONS: Based on preliminary results, Compass showed useful diagnostic characteristics for the study of glaucoma, and combined morphological information with functional data.", "link"=>"http://www.mendeley.com/research/compass-clinical-evaluation-new-instrument-diagnosis-glaucoma", "reader_count"=>10, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>2, "Librarian"=>1, "Researcher"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>2, "Student > Master"=>2, "Other"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>2, "Librarian"=>1, "Researcher"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>2, "Student > Master"=>2, "Other"=>1}, "reader_count_by_subject_area"=>{"Medicine and Dentistry"=>6, "Agricultural and Biological Sciences"=>1, "Business, Management and Accounting"=>1, "Computer Science"=>2}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>6}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>1}, "Computer Science"=>{"Computer Science"=>2}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>1}}, "group_count"=>0}

Scopus | Further Information

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Figshare

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  • {"files"=>["https://ndownloader.figshare.com/files/1986607"], "description"=>"<p>(A) The green dot shows the expected presentation position on the retina of one of the 24–2 measurement locations. (B) The red dot shows the actual presentation position in presence of a 3-degree eye movement at the time of presentation (see arrow) and in absence of a compensation mechanism: the red dot is where the HFA would actually measure sensitivity, without a chance to time-correlate presentation of this stimulus with the information provided by the gaze tracker. The use of a 25 Hz retinal tracker instead, enables Compass to maintain the expected presentation position even in presence of wide and fast eye movements.</p>", "links"=>[], "tags"=>["fixation stability.ResultsThe difference", "hfa", "Compass test", "sita", "color image quality", "glaucoma patients", "sd", "subject"], "article_id"=>1354254, "categories"=>["Biological Sciences"], "users"=>["Luca Rossetti", "Maurizio Digiuni", "Alberto Rosso", "Roberta Riva", "Giuliano Barbaro", "Michael K. Smolek", "Nicola Orzalesi", "Stefano De Cilla’", "Alessandro Autelitano", "Paolo Fogagnolo"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0122157.g002", "stats"=>{"downloads"=>2, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Eye_tracking_compensation_/1354254", "title"=>"Eye tracking compensation.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-03-25 02:58:06"}
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  • {"files"=>["https://ndownloader.figshare.com/files/1986611"], "description"=>"<p>Retinal sensitivity standard deviations at each location in normal group for Compass (A) and HFA (B).</p>", "links"=>[], "tags"=>["fixation stability.ResultsThe difference", "hfa", "Compass test", "sita", "color image quality", "glaucoma patients", "sd", "subject"], "article_id"=>1354258, "categories"=>["Biological Sciences"], "users"=>["Luca Rossetti", "Maurizio Digiuni", "Alberto Rosso", "Roberta Riva", "Giuliano Barbaro", "Michael K. Smolek", "Nicola Orzalesi", "Stefano De Cilla’", "Alessandro Autelitano", "Paolo Fogagnolo"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0122157.g004", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Retinal_sensitivity_standard_deviations_at_each_location_in_normal_group_for_Compass_A_and_HFA_B_/1354258", "title"=>"Retinal sensitivity standard deviations at each location in normal group for Compass (A) and HFA (B).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-03-25 02:58:06"}
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  • {"files"=>["https://ndownloader.figshare.com/files/1986617"], "description"=>"<p>Examples of color images: normal subject (A), glaucoma patient (B), optic nerve head detail (C), infrared image with a sensitivity grid (D).</p>", "links"=>[], "tags"=>["fixation stability.ResultsThe difference", "hfa", "Compass test", "sita", "color image quality", "glaucoma patients", "sd", "subject"], "article_id"=>1354264, "categories"=>["Biological Sciences"], "users"=>["Luca Rossetti", "Maurizio Digiuni", "Alberto Rosso", "Roberta Riva", "Giuliano Barbaro", "Michael K. Smolek", "Nicola Orzalesi", "Stefano De Cilla’", "Alessandro Autelitano", "Paolo Fogagnolo"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0122157.g007", "stats"=>{"downloads"=>1, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Examples_of_color_images_normal_subject_A_glaucoma_patient_B_optic_nerve_head_detail_C_infrared_image_with_a_sensitivity_grid_D_/1354264", "title"=>"Examples of color images: normal subject (A), glaucoma patient (B), optic nerve head detail (C), infrared image with a sensitivity grid (D).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-03-25 02:58:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1986618"], "description"=>"<p>Investigational hypotheses.</p>", "links"=>[], "tags"=>["fixation stability.ResultsThe difference", "hfa", "Compass test", "sita", "color image quality", "glaucoma patients", "sd", "subject"], "article_id"=>1354265, "categories"=>["Biological Sciences"], "users"=>["Luca Rossetti", "Maurizio Digiuni", "Alberto Rosso", "Roberta Riva", "Giuliano Barbaro", "Michael K. Smolek", "Nicola Orzalesi", "Stefano De Cilla’", "Alessandro Autelitano", "Paolo Fogagnolo"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0122157.t001", "stats"=>{"downloads"=>1, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Investigational_hypotheses_/1354265", "title"=>"Investigational hypotheses.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-03-25 02:58:06"}
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PMC Usage Stats | Further Information

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  • {"unique-ip"=>"45", "full-text"=>"54", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"5"}
  • {"unique-ip"=>"28", "full-text"=>"17", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"6"}
  • {"unique-ip"=>"15", "full-text"=>"14", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"7"}
  • {"unique-ip"=>"8", "full-text"=>"8", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"3"}
  • {"unique-ip"=>"26", "full-text"=>"29", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"8"}
  • {"unique-ip"=>"42", "full-text"=>"20", "pdf"=>"46", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"9"}
  • {"unique-ip"=>"17", "full-text"=>"12", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"10"}
  • {"unique-ip"=>"17", "full-text"=>"16", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"2"}
  • {"unique-ip"=>"29", "full-text"=>"23", "pdf"=>"18", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"11"}
  • {"unique-ip"=>"16", "full-text"=>"16", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"12"}
  • {"unique-ip"=>"17", "full-text"=>"15", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"1"}
  • {"unique-ip"=>"21", "full-text"=>"20", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"3"}
  • {"unique-ip"=>"15", "full-text"=>"15", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"4"}
  • {"unique-ip"=>"16", "full-text"=>"15", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"5"}
  • {"unique-ip"=>"29", "full-text"=>"32", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"6"}
  • {"unique-ip"=>"19", "full-text"=>"21", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"7"}
  • {"unique-ip"=>"18", "full-text"=>"21", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
  • {"unique-ip"=>"22", "full-text"=>"26", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
  • {"unique-ip"=>"27", "full-text"=>"33", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"13", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"10"}
  • {"unique-ip"=>"18", "full-text"=>"20", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"11"}
  • {"unique-ip"=>"21", "full-text"=>"21", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"12"}
  • {"unique-ip"=>"14", "full-text"=>"12", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"1"}
  • {"unique-ip"=>"23", "full-text"=>"24", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"2"}
  • {"unique-ip"=>"35", "full-text"=>"40", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"3"}
  • {"unique-ip"=>"24", "full-text"=>"24", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"4"}
  • {"unique-ip"=>"43", "full-text"=>"49", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"5"}
  • {"unique-ip"=>"24", "full-text"=>"26", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"6"}
  • {"unique-ip"=>"23", "full-text"=>"24", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"7"}
  • {"unique-ip"=>"16", "full-text"=>"15", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"8"}
  • {"unique-ip"=>"24", "full-text"=>"25", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"9"}
  • {"unique-ip"=>"19", "full-text"=>"24", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"10"}
  • {"unique-ip"=>"19", "full-text"=>"20", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"11"}
  • {"unique-ip"=>"16", "full-text"=>"17", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"12"}
  • {"unique-ip"=>"21", "full-text"=>"24", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"8", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"1"}
  • {"unique-ip"=>"33", "full-text"=>"36", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"3"}
  • {"unique-ip"=>"17", "full-text"=>"17", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"1"}
  • {"unique-ip"=>"18", "full-text"=>"23", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
  • {"unique-ip"=>"13", "full-text"=>"18", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"12"}
  • {"unique-ip"=>"27", "full-text"=>"29", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"4"}
  • {"unique-ip"=>"21", "full-text"=>"27", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2018", "month"=>"5"}
  • {"unique-ip"=>"24", "full-text"=>"20", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
  • {"unique-ip"=>"25", "full-text"=>"26", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"6"}
  • {"unique-ip"=>"16", "full-text"=>"17", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"7"}
  • {"unique-ip"=>"18", "full-text"=>"18", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
  • {"unique-ip"=>"24", "full-text"=>"25", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"18", "full-text"=>"21", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"16", "full-text"=>"19", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"16", "full-text"=>"19", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"21", "full-text"=>"23", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}
  • {"unique-ip"=>"13", "full-text"=>"15", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"8"}
  • {"unique-ip"=>"23", "full-text"=>"31", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"9"}
  • {"unique-ip"=>"13", "full-text"=>"12", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"10"}

Relative Metric

{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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