What is letter of retraction?

A letter of retraction is a formal document in which an author or individual withdraws or disavows a previously published statement, paper, or claim. This may occur due to errors, ethical concerns, or new findings that contradict the original content. The letter typically outlines the reasons for the retraction and may address any implications for the credibility of the work or its authors. It serves to maintain transparency and integrity in academic and professional communication.