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Welcome to BioPortal,
the world’s most comprehensive repository of biomedical ontologies
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Consultative Group on International Agricultural Research
Bibliographic Materials Group
OBO Foundry
WHO Family of International Classifications
Cancer Biomedical Informatics Grid
Proteomics Standards Initiative
Clinical and Translational Science Awards
Biodiversity Information Standards
Unified Medical Language System
Ontology Visits (June 2017)
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BioPortal Statistics
Ontologies
568
Classes
8,154,165
Resources Indexed
48
Indexed Records
39,537,360
Direct Annotations
95,468,433,792
Direct Plus Expanded Annotations
144,789,582,932