"C83270"^^ . "The standard unit of measure for electrocardiogram results.NCI" . "EGSTRESUPTCDISC" . "Electrocardiogram Standard Unit"^^ . "Quantitative Concept"^^ . "Electrocardiogram Standard Unit"^^ . "C2826860"^^ . . "Electrocardiogram_Standard_Unit"^^ . . . "Electrocardiogram Standard UnitPTNCI" .