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The  Electrocardiogram (EG) domain is based on the Findings General Observation class. The EG domain is used to represent ECG data, including the position of the subject; method of evaluation; all cycle measurements; and all findings from the ECG, including an overall interpretation, if collected. This data may be collected at the local site, or at a central lab. Routine ECG date collected in trials is often collected at the study site.