To import references into Covidence,
You can import files up to 50 MB in size, and each file up to 15,000 references. Larger files may take longer to upload and process. You can import one file at a time, and there is no limit to the # of files to be imported.
Duplicate references will be removed automatically when imported, which are recorded on the PRISMA chart as well. More information is available at https://support.covidence.org/help/study-imports.
Watch the following video created by Covidence to learn how to import references from various sources: