What is data tabulation? ADD here
SDTM Section 1.4.1
The permissible variables do not include all the variables that are allowed for the domain; they are a set of variables that the SDS Team considered likely to be included.
SDTM - The SDTM Standard Domain Models
The collected data for a given study may use standard domains from this and other SDTM implementation guides as well as additional custom domains based on the 3 general observation classes.
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