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-*OMOP Common Data Model v5.1 Specifications*
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*Authors: Christian Reich, Patrick Ryan, Rimma Belenkaya, Karthik Natarajan, Clair Blacketer*
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***Release date needed***
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----
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-# Table of Contents
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-**[License](License.md)**
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**[1 Background](Background/Background.md)**
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[1.1 The Role of the Common Data Model](Background/TheRoleoftheCommonDataModel.md)
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[1.2 Design Principles](Background/DesignPrinciples.md)
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[1.3 Data Model Conventions](Background/DataModelConventions.md)
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**[2 Glossary of Terms](GlossaryofTerms.md)**
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**[3 Standardized Vocabularies](StandardizedVocabularies/StandardizedVocabularies.md)**
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[3.1 CONCEPT](StandardizedVocabularies/CONCEPT.md)
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[3.2 VOCABULARY](StandardizedVocabularies/VOCABULARY.md)
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[3.3 DOMAIN](StandardizedVocabularies/DOMAIN.md)
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[3.4 CONCEPT_CLASS](StandardizedVocabularies/CONCEPT_CLASS.md)
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3.5 CONCEPT_RELATIONSHIP
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3.6 RELATIONSHIP
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3.7 CONCEPT_SYNONYM
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3.8 CONCEPT_ANCESTOR
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3.9 SOURCE_TO_CONCEPT_MAP
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3.10 DRUG_STRENGTH
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3.11 COHORT_DEFINITION
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3.12 ATTRIBUTE_DEFINITION
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**4 Standardized Metadata**
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4.1 CDM_SOURCE
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**5 Standardized Clinical Data Tables**
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5.1 PERSON
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5.2 OBSERVATION_PERIOD
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5.3 SPECIMEN
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5.4 DEATH
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5.5 VISIT_OCCURRENCE
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5.6 PROCEDURE_OCCURRENCE
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5.7 DRUG_EXPOSURE
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5.8 DEVICE_EXPOSURE
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5.9 CONDITION_OCCURRENCE
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5.10 MEASUREMENT
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5.11 NOTE
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5.12 OBSERVATION
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5.13 FACT_RELATIONSHIP
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**6 Standardized Health System Data Tables**
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6.1 LOCATION
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6.2 CARE_SITE
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6.3 PROVIDER
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**7 Standardized Health Economics Data Tables**
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7.1 PAYER_PLAN_PERIOD
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7.2 COST
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**8 Standardized Derived Elements**
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8.1 COHORT
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8.2 COHORT_ATTRIBUTE
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8.3 DRUG_ERA
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8.4 DOSE_ERA
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8.5 CONDITION_ERA