NCIt related terms : DOMAIN; SDTM Domain Abbreviation;
NCIt definition : Terminology codelist used with Submission Domain Abbreviation within the Clinical
Data Interchange Standards Consortium Study Data Tabulation Model.;
Alternative definition : CDISC: A unique, 2-character domain code used in the regulatory submission process.
The domain abbreviation is used consistently throughout the submission, i.e. in the
dataset name, as the value of the domain variable within the dataset, and as a prefix
for most variable names in the dataset. (CDISC Glossary);