Retractions, retracted articles and withdrawals coverage in scholarly databases

This paper analyses the coverage of retractions, retracted publications and withdrawals by seven scholarly databases (Dimensions, The Lens, OpenAlex, PubMed, Scilit, Scopus and Web of Science). The results show that there are two types of products: traditional citation indexes (WoS, PubMed, Scopus) based in the selection of journals and where withdrawals are not indexed; and new hybrid databases (Dimensions, OpenAlex, Scilit and The Lens), less selective and based in external sources such as Crossref and Microsoft Academic. These differences are mainly due to the coverage of withdrawals.