1. Why must we leave our organs to others;Hester;Am J Bioethics,2006
2. The obligation to participate in biomedical research;Schaefer;JAMA,2009
3. Limits to research risks;Miller;J Med Ethics,2009
4. Principles of Biomedical Ethics;Beauchamp,2001
5. Living donor organ transplantation;Wilkinson,2007