• Public health

To the Editor: The avoidance of redundant publication is the core of the editorial task; therefore editors have established clear policies posted in their instructions for authors. The term ‘redundant publication’ has always been used for research reported by the same author and sent to two or more different journals. We report here a different situation that also results in unplanned redundant publication.

We bring to your attention the following facts relating to the meta-analysis published …