1. Ethics and clinical research;Beecher;N Engl J Med,1966
2. Ethics and human experimentation;Rothman;N Engl J Med,1987
3. Ethical and regulatory aspects of clinical research: readings and commentary;Emanuel,2003
4. The ethics of research involving human subjects: facing the 21st century;Vanderpool,1996
5. Ethical Principles in clinical research;Grady,2007