Authors should note that they can withdraw their articles before they are sent for peer review or when they are returned to them for making changes (minor or major revisions), not when they are under peer review, unless that round of peer review (and not the total duration) for the article has exceeded the maximum duration of the peer review process stated on the website (6 weeks).
Occasionally, articles may represent infringements of professional ethical codes, such as multiple submission, bogus claims of authorship, plagiarism, fraudulent use of data, or the like. Such articles along with those that are very similar to other published articles or tend to violate the journals’ ethical guidelines in the view of the editors may be withdrawn.
For this purpose, a withdrawal letter must be emailed to the editorial office announcing the decision to withdraw and explaining the reason for withdrawal. The corresponding author signs this letter.