1. Emanuel EJ, Wendler D, Grady C. What makes clinical research ethical? JAMA 2000;283:2701-11.
2. Emanuel EJ, Grady C, Crouch RA, et al (eds.). The Oxford Textbook of Clinical Research Ethics. Oxford: Oxford University Press, 2008.
3. U.S. Department of Health & Human Services website. The Nuremberg Code. Available at:
http://www.hhs.gov/ohrp/archive/nurcode.html
. Accessed January 14, 2015.
4. World Medical Association website. WMA Declaration of Helsinki – Ethical Principles for Medical Research Involving Human Subjects. Available at:
http://www.wma.net/en/30publications/10policies/b3/index.html
. Accessed January 14, 2015.
5. U.S. Department of Health & Human Services website. The Belmont Report: Ethical Principles and Guidelines for the Protection of Human Subjects of Research. The National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research. April 18, 1979. Available at:
http://www.hhs.gov/ohrp/humansubjects/guidance/belmont.html
. Accessed January 14, 2015.