We fully comply with the Code of Conduct and the Best Practice Guidelines of the Committee on Publication Ethics (COPE). The editors of JMAS take the responsibility to ensure high-quality scientific publications that meet standards of academic excellence and to enforce a rigorous peer-review together with strict ethical policies and standards in the field of scholarly publication. In case of an ethical issue, all requisite action is taken. Ethical issues that might be raised by readers of the journal will be examined by the editorial office following procedures in line with COPE guidelines.

COPE guidelines are shown in the link:
https://publicationethics.org/files/u7141/1999pdf13.pdf