1. Cruzan v. Director, Missouri Department of Health 110 S. Ct. 2841 (1990).
2. Nancy Cruzan and the right to die;Annas;N Engl J Med,1990
3. In re Quinlan 70 N.J. 10 (1976).
4. A review of the ethical and legal aspects of terminating medical care;Emanuel;Am J Med,1988