The Declaration of Helsinki (DoH): Ethical Principles for Medical Research Involving Human Subjects was revised by the World Medical Association (WMA) at the 64th WMA General Assembly, Fortaleza, Brazil, October 2013.
This new version of Declaration of Helsinki (2013) replaces the version of 2008 of 59th WMA General Assembly, Seoul, Republic of Korea, October 2008.
What has changed?