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title: "Local Change"
output: html_document
---

Since you do not have a network use case and this element is specific to your data source, **feel free to create a local change to your instance of the OMOP Common Data Model.** Augmenting the model at your institution for administrative purposes or other in-house needs is totally acceptable with the understanding that any local changes cannot and should not be relied upon in network studies or supported by the open-source tools.