i2b2 Web Client
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Three examples of different areas of the Sample ontology used in the i2b2 Web Client Demo shows the Demographics, Laboratory Tests and Medications Folders.    









Constraints

Constraints are used to narrow down the search criteria to a particular time frame, number of occurrences or a specific value or range of values. In i2b2, there are several types of constraints that can be defined in the Query Tool view.  These include Date Constraints, Exclusion, Occurrence, Panel, Temporal, and Value Constraints.

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