Source:http://linkedlifedata.com/resource/umls/id/C2698614
NCI: A terminology subset of the CDISC Study Data Tabulation Model (SDTM) Unit codelist created for Clinical Data Acquisition Standards Harmonization (CDASH) Unit for Duration of Treatment Interruption terminology.,NCI: A terminology subset of the CDISC SDTM Unit codelist created for CDASH Unit for Duration of Treatment Interruption codelist. (NCI)