The 2 most common congenital heart diseases.
D001021:Aortic Valve / Q000002:abnormalities*; D001024:Aortic Valve Stenosis / Q000209:etiology; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology; D008945:Mitral Valve Prolapse / Q000150:complications / Q000453:epidemiology*