1. Under My Reviews, select your review and click the Show button.
2. Click the Detect duplicates button on the top right of the review page.
![](https://libapps.s3.amazonaws.com/accounts/62523/images/rayyan_detect_duplicates.png)
3. You will see the message "This will clear all duplicate resolutions you have made till now (except Deleted.) Click OK to continue.
![Rayyan duplicate popup message](https://libapps.s3.amazonaws.com/accounts/62523/images/rayyan_duplicate_message.png)
4. Under Possible Duplicates on the left side of the page, click Unresolved.
![Rayyan possible duplicates unresolved filter](https://libapps.s3.amazonaws.com/accounts/62523/images/rayyan_possdupl_unresolved.png)
5. Click the reference you want to resolve.
![Rayyan select reference](https://libapps.s3.amazonaws.com/accounts/62523/images/rayyan_select_reference.png)
6. Click Resolve duplicate in the lower panel. Rayyan will now display the original reference and any references it suspects are duplicates. A single reference can have multiple (>2) duplicates.
![Rayyan resolve duplicate button](https://libapps.s3.amazonaws.com/accounts/62523/images/Rayyan_resolveduplicate.png)
![Rayyan display of two duplicate references](https://libapps.s3.amazonaws.com/accounts/62523/images/rayyan_resolving_duplicate.png)
7. If the references are duplicates, select Delete for each duplicate record you want to remove from the review. (If you accidentally delete a reference, try this workaround to restore it.)
![Rayyan delete button for duplicate](https://libapps.s3.amazonaws.com/accounts/62523/images/Rayyan_delete_duplicate.png)
8. If the references are not duplicates, select Not duplicate for each record that is unique.
![Rayyan not duplicate button](https://libapps.s3.amazonaws.com/accounts/62523/images/Rayyan_not_duplicate.png)