1. Nuremberg Code, 1947,1995
2. The Ethics of Biomedical Research;Brody,1998
3. World Medical Association. Declaration of Helsinki. 1996. pp. 214–216.
4. International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use. 1996. Guidelines on Good Clinical Practice. pp. 219–224.
5. Council of Europe. Recommendations Concerning Medical Research on Human Beings. 1990. pp. 241–250.