The National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research. 1979. The Belmont Report: Ethical Principles and Guidelines for the Protection of Human Subjects of Research. Washington, D.C.: United States Department of Health, Education and Welfare. Retrieved October 11, 2013 (http://www.hhs.gov/ohrp/humansubjects/guidance/belmont.html).
2.
United States Department of Health and Human Services. 1974. Code of Federal Regulations, Title 45, Public Welfare, Part 46, Protection of Human Subjects, Revised January 15, 2009. Washington, D.C.: United States Department of Health and Human Services. Retrieved October 11, 2013 (http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.html).