A Four-Antigen Mixture for Rapid Assessment of Onchocerca volvulus Infection
- Publication Date
- May 19, 2009
- Journal
- PLOS Neglected Tropical Diseases
- Authors
- Peter D. Burbelo, Hannah P. Leahy, Michael J. Iadarola & Thomas B. Nutman
- Volume
- 3
- Issue
- 5
- Pages
- e438
- DOI
- https://dx.plos.org/10.1371/journal.pntd.0000438
- Publisher URL
- http://journals.plos.org/plosntds/article?id=10.1371%2Fjournal.pntd.0000438
- PubMed
- http://www.ncbi.nlm.nih.gov/pubmed/19436728
- PubMed Central
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2677158
- Europe PMC
- http://europepmc.org/abstract/MED/19436728
- Web of Science
- 000267268000011
- Scopus
- 70350124529
- Mendeley
- http://www.mendeley.com/research/fourantigen-mixture-rapid-assessment-onchocerca-volvulus-infection
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Mendeley | Further Information
{"title"=>"A Four-Antigen Mixture for Rapid Assessment of Onchocerca volvulus Infection", "type"=>"journal", "authors"=>[{"first_name"=>"Peter D.", "last_name"=>"Burbelo"}, {"first_name"=>"Hannah P.", "last_name"=>"Leahy"}, {"first_name"=>"Michael J.", "last_name"=>"Iadarola"}, {"first_name"=>"Thomas B.", "last_name"=>"Nutman"}], "year"=>2009, "source"=>"PLoS Neglected Tropical Diseases", "identifiers"=>{"doi"=>"10.1371/journal.pntd.0000438", "sgr"=>"70350124529", "isbn"=>"1935-2735 (Electronic)\\n1935-2727 (Linking)", "pmid"=>"19436728", "issn"=>"1935-2735", "scopus"=>"2-s2.0-70350124529", "pui"=>"355886109"}, "id"=>"d354304f-97da-38b2-8368-e58d9456d0cc", "abstract"=>"BACKGROUND: Onchocerciasis, an infection caused by the filarial nematode Onchocerca volvulus, is a major public health concern. Given the debilitating symptoms associated with onchocerciasis and concerns about recrudescence in areas of previous onchocerciasis control, more efficient tools are needed for diagnosis and monitoring of control measures. We investigated whether luciferase immunoprecipitation systems (LIPS) may be used as a more rapid, specific, and standardized diagnostic assay for Onchocerca volvulus infection. METHODS: Four recombinantly produced Onchocerca volvulus antigens (Ov-FAR-1, Ov-API-1, Ov-MSA-1 and Ov-CPI-1) were tested by LIPS on a large cohort of blinded sera comprised of both uninfected controls and patients with a proven parasitic infection including Onchocerca volvulus (Ov), Wuchereria bancrofti (Wb), Loa loa (Ll), Strongyloides stercoralis (Ss), and with other potentially cross-reactive infections. In addition to testing all four Ov antigens separately, a mixture that tested all four antigens simultaneously was evaluated in the standard 2-hour incubation format as well as in a 15-minute rapid LIPS format. FINDINGS: Antibody responses to the four different Ov antigens allowed for unequivocal differentiation between Ov-infected and uninfected control sera with 100% sensitivity and 100% specificity. Analysis of the antibody titers to each of these four antigens in individual Ov-infected sera revealed that they were markedly different and did not correlate (r(S) = -0.11 to 0.58; P = 0.001 to 0.89) to each other. Compared to Ov-infected sera, patients infected with Wb, Ll, Ss, and other conditions had markedly lower geometric mean antibody titers to each of the Ov 4 antigens (P<0.0002 for each antigen). The simplified method of using a mixture of the 4 Ov antigens simultaneously in the standard format or a quick 15-minute format (QLIPS) showed 100% sensitivity and 100% specificity in distinguishing the Ov-infected sera from the uninfected control sera. Finally, the QLIPS format had the best performance with 100% sensitivity and specificity values of 76%, 84% and 93% for distinguishing Ov from Wb, Ll and Ss-infected sera. CONCLUSIONS: The multi-antigen LIPS assay can be used as a rapid, high throughput, and specific tool to not only to diagnose individual Ov infections but also as a sensitive and potentially point-of-care method for early detection of recrudescent infections in areas under control and for mapping new areas of transmission of Ov infection.", "link"=>"http://www.mendeley.com/research/fourantigen-mixture-rapid-assessment-onchocerca-volvulus-infection", "reader_count"=>27, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>7, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>1, "Student > Master"=>4, "Other"=>2, "Student > Bachelor"=>2, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>7, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>1, "Student > Master"=>4, "Other"=>2, "Student > Bachelor"=>2, "Lecturer > Senior Lecturer"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Engineering"=>1, "Biochemistry, Genetics and Molecular Biology"=>3, "Nursing and Health Professions"=>1, "Mathematics"=>1, "Medicine and Dentistry"=>7, "Agricultural and Biological Sciences"=>8, "Chemistry"=>1, "Immunology and Microbiology"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>7}, "Chemistry"=>{"Chemistry"=>1}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>8}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>3}, "Mathematics"=>{"Mathematics"=>1}, "Unspecified"=>{"Unspecified"=>4}}, "reader_count_by_country"=>{"Denmark"=>1, "United Kingdom"=>1}, "group_count"=>0}CrossRef
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Scopus | Further Information
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- {"month"=>"5", "year"=>"2018", "pdf_views"=>"0", "xml_views"=>"0", "html_views"=>"3"}
- {"month"=>"6", "year"=>"2018", "pdf_views"=>"7", "xml_views"=>"2", "html_views"=>"21"}
- {"month"=>"7", "year"=>"2018", "pdf_views"=>"0", "xml_views"=>"3", "html_views"=>"2"}
- {"month"=>"8", "year"=>"2018", "pdf_views"=>"3", "xml_views"=>"2", "html_views"=>"5"}
- {"month"=>"9", "year"=>"2018", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"3"}
- {"month"=>"10", "year"=>"2018", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"2"}
- {"month"=>"11", "year"=>"2018", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"12", "year"=>"2018", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"1", "year"=>"2019", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"2", "year"=>"2019", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"3", "year"=>"2019", "pdf_views"=>"3", "xml_views"=>"1", "html_views"=>"1"}
- {"month"=>"4", "year"=>"2019", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"5", "year"=>"2019", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"6", "year"=>"2019", "pdf_views"=>"12", "xml_views"=>"0", "html_views"=>"18"}
- {"month"=>"7", "year"=>"2019", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"0"}
- {"month"=>"8", "year"=>"2019", "pdf_views"=>"2", "xml_views"=>"0", "html_views"=>"4"}
- {"month"=>"9", "year"=>"2019", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"5"}
- {"month"=>"10", "year"=>"2019", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"4"}
- {"month"=>"11", "year"=>"2019", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"6"}
- {"month"=>"12", "year"=>"2019", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"3"}
PMC Usage Stats | Further Information
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- {"month"=>"4", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"20", "year"=>"2010", "pdf"=>"11", "unique-ip"=>"19", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"5", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"10", "unique-ip"=>"13", "pdf"=>"10", "year"=>"2010", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"5", "year"=>"2010", "pdf"=>"3", "unique-ip"=>"8", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"7", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"9", "unique-ip"=>"11", "pdf"=>"11", "year"=>"2010", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"8", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"12", "year"=>"2010", "pdf"=>"7", "unique-ip"=>"16", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"9", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"11", "unique-ip"=>"13", "pdf"=>"12", "year"=>"2010", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"10", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"15", "year"=>"2010", "pdf"=>"7", "unique-ip"=>"16", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"11", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"20", "unique-ip"=>"21", "pdf"=>"8", "year"=>"2010", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"12", "scanned-page-browse"=>"0", "cited-by"=>"1", "abstract"=>"0", "full-text"=>"15", "year"=>"2010", "pdf"=>"10", "unique-ip"=>"19", "figure"=>"1", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"1", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"7", "unique-ip"=>"11", "pdf"=>"2", "year"=>"2011", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"2", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"11", "year"=>"2011", "pdf"=>"2", "unique-ip"=>"13", "figure"=>"3", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"3", "cited-by"=>"0", "abstract"=>"3", "full-text"=>"14", "unique-ip"=>"18", "pdf"=>"10", "year"=>"2011", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"4", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"6", "year"=>"2011", "pdf"=>"5", "unique-ip"=>"9", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"5", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"8", "unique-ip"=>"12", "pdf"=>"6", "year"=>"2011", "figure"=>"3", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"9", "year"=>"2011", "pdf"=>"4", "unique-ip"=>"10", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"7", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"11", "unique-ip"=>"10", "pdf"=>"1", "year"=>"2011", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"8", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"17", "year"=>"2011", "pdf"=>"4", "unique-ip"=>"16", "figure"=>"7", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"9", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"4", "unique-ip"=>"5", "pdf"=>"5", "year"=>"2011", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"10", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"4", "year"=>"2011", "pdf"=>"3", "unique-ip"=>"4", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"11", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"13", "unique-ip"=>"9", "pdf"=>"4", "year"=>"2011", "figure"=>"1", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"12", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"5", "year"=>"2011", "pdf"=>"2", "unique-ip"=>"4", "figure"=>"3", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"1", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"8", "unique-ip"=>"7", "pdf"=>"5", "year"=>"2012", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"2", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"5", "year"=>"2012", "pdf"=>"3", "unique-ip"=>"6", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"3", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"15", "unique-ip"=>"9", "pdf"=>"7", "year"=>"2012", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"4", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"6", "year"=>"2012", "pdf"=>"2", "unique-ip"=>"7", "figure"=>"6", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"5", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"2", "unique-ip"=>"2", "pdf"=>"1", "year"=>"2012", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"5", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"10", "year"=>"2009", "pdf"=>"7", "unique-ip"=>"10", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"6", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"22", "unique-ip"=>"24", "pdf"=>"24", "year"=>"2009", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"7", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"6", "full-text"=>"8", "year"=>"2009", "pdf"=>"3", "unique-ip"=>"12", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"8", "cited-by"=>"0", "abstract"=>"3", "full-text"=>"12", "unique-ip"=>"17", "pdf"=>"14", "year"=>"2009", "figure"=>"1", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"9", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"38", "year"=>"2009", "pdf"=>"24", "unique-ip"=>"28", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"10", "cited-by"=>"0", "abstract"=>"3", "full-text"=>"5", "unique-ip"=>"7", "pdf"=>"1", "year"=>"2009", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"11", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"17", "year"=>"2009", "pdf"=>"7", "unique-ip"=>"17", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"12", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"17", "unique-ip"=>"18", "pdf"=>"8", "year"=>"2009", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"1", "year"=>"2012", "pdf"=>"0", "unique-ip"=>"1", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"unique-ip"=>"7", "full-text"=>"7", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"7"}
- {"unique-ip"=>"6", "full-text"=>"8", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"8"}
- {"unique-ip"=>"4", "full-text"=>"5", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"9"}
- {"unique-ip"=>"5", "full-text"=>"4", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"10"}
- {"unique-ip"=>"6", "full-text"=>"5", "pdf"=>"1", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"12"}
- {"unique-ip"=>"7", "full-text"=>"7", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"1"}
- {"unique-ip"=>"7", "full-text"=>"25", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"3"}
- {"unique-ip"=>"10", "full-text"=>"14", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"2"}
- {"unique-ip"=>"10", "full-text"=>"11", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"4"}
- {"unique-ip"=>"6", "full-text"=>"6", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2012", "month"=>"11"}
- {"unique-ip"=>"7", "full-text"=>"8", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"5"}
- {"unique-ip"=>"12", "full-text"=>"15", "pdf"=>"7", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"6"}
- {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"7"}
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- {"unique-ip"=>"4", "full-text"=>"4", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"10"}
- {"unique-ip"=>"3", "full-text"=>"4", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"11"}
- {"unique-ip"=>"5", "full-text"=>"4", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"12"}
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- {"unique-ip"=>"8", "full-text"=>"9", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"2"}
- {"unique-ip"=>"4", "full-text"=>"3", "pdf"=>"2", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"3"}
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- {"unique-ip"=>"14", "full-text"=>"17", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"7"}
- {"unique-ip"=>"13", "full-text"=>"8", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2014", "month"=>"8"}
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- {"unique-ip"=>"16", "full-text"=>"19", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"11"}
- {"unique-ip"=>"8", "full-text"=>"11", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"12"}
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Relative Metric
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