“Along with other types of research, it has been stated that the extent of redundancy in systematic reviews has reached epidemic proportions. However, it was also emphasized that not all duplication is bad, that replication in research is essential, and that it can help discover unfortunate behaviors of scientists. Thus, the question is how to define a redundant systematic review, the harmful consequences of such reviews, and what we could do to prevent the unnecessary amount of this redundancy.”
This new article by Livia Puljak and Hans Lund on redundant systematic reviews was inspired by talks from the 3rd EBR conference of EVBRES. The article also includes advice on how to kill a zombie!
You can read it here: https://link.springer.com/article/10.1186/s13643-023-02191-8