RIS files are generated to load studies from search databases other than PubMed into NK. After performing a search on SCOPUS, Web of Science, Embase, etc. there is an option to export the search as an RIS file. It must be exported as an RIS file because that is the format needed for NK to read it correctly.

Make sure you export all the studies in the search. Specific tips on search databases are below.

You may consider downloading Zotero if you are finding it difficult to export RIS files from EndNote.

• Export all studies as Format: RIS and Field: “Citation”
• Unselect “Link to External Resolver” and “URL”

• Leave all preselected items on “Citation Format” alone
• Export as “RIS Format”

• Follow the steps in any Search Engine that supports RIS Export
• When in doubt, select the file type that is 'for Reference Managers' or similar

Log into the specific nest on NK. Go to Literature Search, this is where you normally search automatically on PubMed through NK.

• From the Literature Search page, select “Add Search”
• In the modal that appears, select “File Import”

• If your RIS File resulted from a search on an index, enter the full query you used and identify the Search Engine/Index in the drop-down.
• If the Search Engine of interest is not present, select “Other”. A text box will appear below this menu; enter the search engine name there.
• Enter the date of your search

• When done, click “Add” in the bottom right of the modal.

If the RIS file does not load any of the studies, check to make sure the RIS file is formatted correctly. Change the file to a .txt file and look at the format. It should be in the format below; if not, edit the file before uploading or contact support.

There is no automatic updating of RIS import. To update your RIS file, we recommend that you do not delete or alter your past import; add an entirely new search term and file; our system will automatically de-duplicate the imported results.

• In the Literature Search page, find the line representing your RIS Import by identifying its Term/Query, Search Engine, and/or Date.
• In the far right column, click the red trash can icon.
• A warning will appear; if you are certain that you want to delete all records from your RIS Import, and any history of its presence in the nest, click “Proceed.”