WMA DECLARATION OF HELSINKI ethical principles (https://www.wma.net/policies-post/wma-declaration-of-helsinki-ethical-principles-for-medical-research-involving-human-subjects/);
ISMJE recommendations (https://www.icmje.org/recommendations/); (https://www.icmje.org/journals-following-the-icmje-recommendations/)
COPE (Committee on Publication Ethics/ https://publicationethics.org/guidance/Guidelines) has adopted the code of ethics.
