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This variable is contained in the following files:
SAS Name
RELATIONSHIP_FROM_DT
The start date of the pharmacy's relationship with a chain or franchise as reported to NCPDP.
Some pharmacies share a relationship with a common organization. For each of these pharmacies, there is a relationship ID (RELATIONSHIP_ID) and type (RELATIONSHIP_TYPE).
Additional details regarding the National Council for Prescription Drug Programs (NCPDP) source data are available at: http://dataq.ncpdp.org/.
Values: MMDDYYYY (e.g., 11/28/2006), or null/missing (relationship date n/a)
Source: NCDPD DataQ™