CDM Documentation: Table Description and User Guide updates for the RELATIONSHIP table section

[m-khitrun]

Hello!
Below I'd like to present some updates for the Table Description and User Guide subsections of the RELATIONSHIP table section:

Table Description
The RELATIONSHIP table provides a reference list of all types of relationships that can be used to associate any two Concepts in the CONCEPT_RELATIONSHIP table, the respective reverse relationships, and their hierarchical characteristics.
Note, that Concepts representing relationships between the clinical facts, used for filling in the FACT_RELATIONSHIP table are stored in the CONCEPT table and belong to the Relationship Domain.

User Guide
Users can leverage the RELATIONSHIP table to explore the full list of direct and reverse relationships within the OMOP vocabulary system. Also, users can get insight into how these relationships can be used in ETL, cohort creation, and other tasks according to their ancestral characteristics.

Regards,
Masha