http://www.medicinenet.com/diseases_and_conditions/article.htm

http://www.webmd.com/a-to-z-guides/common-topics/default.htm

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

http://www.medicinenet.com/script/main/alphaidx.asp?p=a_dt

http://www.virtualmedicalcentre.com/diseases.asp

http://www.mayoclinic.com/health/DiseasesIndex/DiseasesIndex

http://www.myelectronicmd.com/reference.php

http://www.rxlist.com/diseases_and_conditions/alpha_a.htm

http://www.rxlist.com/diseases_and_conditions/alpha_p.htm

http://www.medical-diseases.info/index.htm