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1. Search for the trial of interest. For instructions, refer to Searching for Trials in PA.

2. In the search results, click the NCI Trial Identifier link for that trial. The Trial Identification page appears.

3. On the Trial Identification page, check out the trial. For instructions, refer to Checking In and Checking Out Trials. (This checkout step is optional for Super Abstractors.)

4. On the Scientific Data menu, click Sub-groups. The Sub-groups page appears, with or without any sub-group records displayed.

5. Click Add. The Add/Edit Sub-group Information page appears. 
   

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6. In the Code field, enter a unique sub-group identifier.
7. In the Description field, enter a brief description of the sub-group.
8. Click Save.
9. Repeat the steps above until all sub-groups have been added.