Documentation
Common Data Model (CDM)
Convert Database to CDM (ETL)
Tool Specific Documentation
Common Data Model (CDM)
Convert Database to CDM (ETL)
Tool Specific Documentation
This is an old revision of the document!
Since the days_supply and the drug_exposure_end_date fields essentially denominate the same thing. In addition, having two fields generates the possibility of inconsistency.
None, since this is a removal.