1. The Belmont report: ethical principles and guidelines for the protection of human subjects of research,1979
2. Protection of human subjects: federal policy for the protection of human subjects. Code of Federal Regulations (Title 45, Part 46). 1991.
3. The human radiation experiments: final report of the President’s Advisory Committee on Human Radiation Experiments,1996
4. What makes clinical research ethical?;Emanuel;JAMA,2000
5. The effectiveness of patient verbalization on informed consent;Wadey;Can J Surg,1997