Background

In most projects, the i2b2 ontology resides in a default database table called I2B2. If you have a large ontology, maybe consisting of concepts from different sources, it might be a good idea to split the ontology into multiple tables. That will simply simplify maintenance as you need to update only the table where the ontology has changed.

Methods

The table TABLE_ACCESS contains references to all other tables that are part of the ontology. See the example Boston demo database:

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