1. World Medical Association (2013) Declaration of Helsinki. Ethical principles for medical research involving human subjects. 64th General assembly, Fortaleza, Brazil. https://www.wma.net/policies-post/wma-declaration-of-helsinki-ethical-principles-for-medical-research-involving-human-subjects/. Accessed 28 Dec 2022
2. Council for International Organizations of Medical Sciences (CIOMS) (2016) International ethical guidelines for health-related research involving humans. Geneva. https://cioms.ch/wp-content/uploads/2017/01/WEB-CIOMS-EthicalGuidelines.pdf. Accessed 28 Dec 2022
3. Australian Government (2007) National Health and Medical Council. Australia Research Council. Universities Australia. National Statement on Ethical Conduct in Human Research. Updated 2018. https://www.nhmrc.gov.au/about-us/publications/national-statement-ethical-conduct-human-research-2007-updated-2018. Accessed 28 Dec 2022
4. Government of Canada (2018) Tri-Council Policy Statement. Ethical conduct for research involving humans. TCPS2. Ottawa. https://ethics.gc.ca/eng/policy-politique_tcps2-eptc2_2018.html. Accessed 28 Dec 2022
5. HHS.gov. Code of Federal Regulations. Protection of human subjects. General Requirements for Informed Consent. General waiver or alteration of consent. Requirements for waiver and alteration. 45CFR 46.116.f.3 https://www.hhs.gov/ohrp/regulations-and-policy/regulations/45-cfr-46/revised-common-rule-regulatory-text/index.html#46.116. Accessed 28 Dec 2022