A piece in today's BMJ
(26 May) leads me to read a paper from last year
describing how plagiarism was uncovered by a systematic review. Iain Chalmers, while working on a systematic review of epidural anaesthesia, discovered a paper which repeated data from another, unacknowledged, paper of some years before.
The case continues - it is the outcome of a Croatian government investigation that is reported in today's BMJ.