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Using controlled terminology and formatting from data collection through tabulation and analysis builds in traceability and transparency across study data. Controlled terminology and formats are required to be used as specified in this guide. General expectations for use of controlled terminology and formats are provided below with more specific expectations in collection metadata tables, tabulation domain specifications, and analysis specificationsguidance. TIG metadata and domain specifications refer to controlled terminology and formats defined both within and external to this guide. 

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