1. Aristotle: 1963, Nichomachean Ethics, in The Philosophy of Aristotle, trans. A. E. Wardman, Mentor Books, New York.
2. Beauchamp, T. L.: 1982, Philosophical Ethics, McGraw-Hill, New York.
3. Beauchamp, T. L. and Childress, J. F.: 1983, Principles of Biomedical Ethics, Oxford University Press, New York.
4. Beecher, H.: 1959, Experimentation in Man, Charles C. Thomas, Springfield, 111.
5. Beecher, H.: 1966, ‘Ethics and Clinical Research’, New England Journal of Medicine
21 A, 1354–1360.