1. 1. http://www.unos.org.
2. 2. Institute of Medicine, JF Childress, and CT Liverman , eds. Organ Donation: Opportunities for Action . 2006 . The National Academic Press, Washington, D.C., p. 21 .
3. 3. Institute of Medicine, JF Childress, and CT Liverman , eds. Organ Donation: Opportunities for Action . Chapter 3, Perspectives and Principles. 2006 . The National Academic Press, Washington, D. C., p. 91 -109 .
4. 4. Institute of Medicine, JF Childress, and CT Liverman , eds. Organ Donation: Opportunities for Action . 2006 . The National Academic Press, Washington, D. C., p. 183 .
5. 5. Institute of Medicine, JF Childress, and CT Liverman , eds. Organ Donation: Opportunities for Action . 2006 . The National Academic Press, Washington, D. C., p. 168 .