1. Pernar, Luise. Nociception. 1998 Third Web Reports. Biology 262. Serendipity. Bryn Mawr College. Retrieved: January 15, 2006 from: http://serendip.brynmawr.edu/bb/neuro/neuro98/202s98-paper3/Pernar3.html.
2. Whitten, Christine, MD, Donovan, Marilee, RN, PhD, Cristobal, Kristene, MS. Treating Chronic Pain: New Knowledge, More Choices. Clinical Contributions. The Permanente Journal. Fall 2005. Vol. 9. No. 4. Retrieved: January 15, 2006 from: http://xnet.kp.org/permanentejournal/fall05/pain3.html.
Date Created: January 22, 2006

