Retraction notice “Cloud data storage with improved resource scheduling in healthcare application based on security system” [Optik 272 (2023) 170225](S0030402622014838)(10.1016/j.ijleo.2022.170225)

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Post-publication, an investigation conducted on behalf of the journal by Elsevier's Research Integrity & Publishing Ethics team discovered suspicious changes in authorship between the original submission and the revised version of this paper. During revision, the authors Saibal Dutta and Lakshmi Thangavelu were added to the revised paper without explanation and without exceptional approval by the journal editor, which is contrary to the journal policy on changes to authorship. Elsevier's Research Integrity & Publishing Ethics team reached out to the authors for an explanation, but they failed to provide a satisfactory explanation to these changes. The Editor has determined that the authorship and the findings of the article cannot be relied upon and has decided to retract the article. The scientific community takes a very strong view on this matter and apologies are offered to readers.