# Navigating from a CRF to the Data Viewer

Use this procedure when you are looking at a CRF for a subject and you want to review the data on the CRF against data on the same CRF for other subjects.

- From any CRF, click the Review button in the lower left corner of the page.

  The Record Listing Single Subject View in the Data Viewer containing the data for the CRF for the selected subject appears.

  For information on how to return to the CRF, see Navigating from the Data Viewer to a CRF.

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