1. Rang and Dale's Pharmacology;Rang,2007
2. http://www.nlm.nih.gov/MEDLINEPLUS/ency/article/000501.htm — Accessed on November 25 2008.
3. http://www.nlm.nih.gov/MEDLINEPLUS/ency/article/000471.htm — Accessed on November 25 2008.
4. http://www.kidney.org/atoz/atozItem.cfm?id=39 — Accessed on November 25 2008.
5. Kidney transplantation: a brief review;Humar;Frontiers in Bioscience,1997