Rush Children's Heart Center 
A definition and discussion on incidence, effects, progression, treatment and complications of aortic stenosis.
http://www.rchc.rush.edu/rmawebfiles/chd%20for%20parents%20as.htmTreatment Strategies
About.com: Explains what aortic stenosis is and looks at when it should be treated and what options there are.
http://heartdisease.about.com/health/heartdisease/library/weekly/aa060197.htm
Heart Matters
A look at the symptoms, diagnosis and etiology of both stenosis and regurgitation of the aortic valve.
http://www.enter.net/~fsadr/aorvalve.htm
Cardiothoracic Surgery Notes
A look at the types of disease of the aortic valve, incompetence, symptoms, diagnosis, natural history of stenosis and regurgitation. Facts about replacement surgery, the survival statistics and risk factors post operation.
http://www.ctsnet.org/residents/ctsn/archives/not42.html
MedlinePlus: Aortic Stenosis
Information about this disorder and its causes, risk factors and incidence.
http://www.nlm.nih.gov/medlineplus/ency/article/000178.htm
MedlinePlus: Aortic Insufficiency
A look at the condition and its alternative names, causes, incidence and risk factors.
http://www.nlm.nih.gov/medlineplus/ency/article/000179.htm
American Heart Association
Defines aortic regurgitation and looks at the causes and what should be done.
http://www.americanheart.org/presenter.jhtml?identifier=4448
eMedicine Health
Consumer health resource center providing information on causes, symptoms, and treatment option of aortic aneurysms.
http://www.emedicinehealth.com/articles/10985-1.asp
Royal Children's Hospital: Aortic Stenosis
Description and treatment, including pictures.
http://www.rch.org.au/cardiology/defects.cfm?doc_id=5082
Aortic Valve Disease
A look at stenosis and regurgitation of this valve.
http://www.ps4ross.com/background/disease.html
