Infringements of professional ethical codes, such as multiple submission, bogus claims of authorship, plagiarism, fraudulent use of data or the like. Occasionally a retraction will be used to correct errors in submission or publication.The retraction of an article by its authors or the editor under the advice of members of the scholarly community has long been an occasional feature of the learned world. Standards for dealing with retractions has been developed by a number of library and scholarly bodies, and this best practice is adopted for article retraction by Indonesian Journal of Medical Laboratoy Science and Technology (IJLMST):