Expression of concern: “Design, synthesis, anticancer activity and docking studies of novel quinazoline-based thiazole derivatives as EGFR kinase inhibitors” [Heliyon 9 (2023) e20300]

An investigation conducted on behalf of the journal by Elsevier's Research Integrity & Publishing Ethics team found a significant increase of citations to papers published by the author, M. K. Prashanth, between the original submission and the revised version of this article. In summary, eight papers by the author were cited in the original version of the article. This increased to seventeen papers in the revised version of the article. The Editors have determined that the references in the paper do not provide readers with a balanced reflection of the literature.