There is a new database that describes itself as
a database of extremely similar Medline citations. Many, but not all, of which contain instances of duplicate publication and potential plagiarism. Deja vu is a dynamic resource for the community, with manual curation ongoing continuously, and we welcome input and comments.
As far as I can see, this is not so much self-plagiarism but self-repetition, yea, yea.
CC-BY-NC Science Surf , accessed 21.03.2026, click to save as PDF