http://en.wikipedia.org/wiki/Immune_system

http://www.mic.stacken.kth.se/Diseases/C20.html

http://www.nlm.nih.gov/medlineplus/immunesystemanddisorders.html

http://www.nutritionadvisor.com/autoimmune-diseases.htm

http://kidshealth.org/teen/diseases_conditions/body_basics/immune.html

http://www.ncbi.nlm.nih.gov/disease/Immune.html

http://en.wikipedia.org/wiki/Immune_system_diseases

http://www.wrongdiagnosis.com/i/immune/intro.htm

http://www.critterchat.net/immune.htm

http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=gnd&part=A51

http://www.wrongdiagnosis.com/organ/immune_system.htm

http://immunedisorders.homestead.com/Disease.html

http://www.canine-epilepsy-guardian-angels.com/ImmuneSystem.htm

http://www.thechildrenshospital.org/conditions/immune/index.aspx

http://www.rheumatology.org/public/factsheets/diseases_and_conditions/immunesystem.asp

http://www.lauricidin.com/immune_system_diseases.asp

http://www.ehow.com/how_4811663_lymphatic-immune-system-diseases.html

http://medicalcenter.osu.edu/patientcare/healthcare_services/infectious_diseases/immunesystem/

http://www.nlm.nih.gov/mesh/trees2008/C20.pdf

http://www.lib.uiowa.edu/hardin/md/immunology.html