1. JR Richards, I Rodan, and T Elston , et al. 2000 Report of the American Association of Feline Practitioners and Academy of Feline Medicine Advisory Panel on Feline Vaccines. Nashville, Tenn: American Association of Feline Practitioners, 2000 . Available at: www.aafponline.org/resources/guidelines/vaccines.pdf. Accessed Aug 24, 2006.
2. CA Janeway, P Travers, M Walport, and M Shlomcik . In: ed.Immunology. New York: Garland Publishing, 2001 ;295 -423 .
3. GB Pier, JB Lyczak, and LM Wetzler .Immunology, infection and immunity. Washington, DC: ASM Press, 2004 ;3 -84 .