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Type Specific Additional Attributes
Field | Data type | Purpose |
| Part of Primary Key | ||||||
expression (Canonical close to user form expression) |
| A serialized representation of the close-to-user form expression produced by applying a set of rules that ensure a single unique representation. | YES | NO | ||||||
substrate (Authoring substrate) |
| The SNOMED CT content by which the close-to-user form expression is generated. | YES | NO |