Source:http://linkedlifedata.com/resource/umls/id/C2698608
NCI: A terminology subset of the CDISC Study Data Tabulation Model (SDTM) Unit codelist created for Clinical Data Acquisition Standards Harmonization (CDASH) ECG Original Units terminology.,NCI: A terminology subset of the CDISC SDTM Unit codelist created for CDASH ECG Original Units codelist. (NCI)