Yes, you can upload references from multiple databases. Keep in mind that if you are using the “Active Learning” function (which most users will), you must upload all references before people start screening them. Once screening begins, the “Upload References” button will be disabled.
Review: Uploading References in SWIFT-Active Screener
Click “Choose File”
Note: PubMed XML, EndNote XML, BibTex, or RIS formats are supported
Browse to Your File
Tip: Deduplicate if needed before uploading
Click “Upload” Click “Finish”
Tip: Upload all references before screening begins