1. Editors. Prevention of viral hepatitis—mission impossible?;JAMA,1971
2. Ethics and clinical research;Beecher;N Engl J Med,1966
3. Ramsey P. The Patient as Person. New Haven: Yale University Press; 12-13.
4. Proxy consent in the experimentation situation;McCormick;Perspect Biol Med,1974
5. Proxy consent in the experimentation situation;McCormick,1981