Chronic rheumatic valvular heart disease in Iceland.
D000328:Adult; D000368:Aged; D001024:Aortic Valve Stenosis / Q000453:epidemiology*; D005260:Female; D006349:Heart Valve Diseases / Q000382:microbiology*; D006801:Humans; D007055:Iceland; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000453:epidemiology*; D008946:Mitral Valve Stenosis / Q000453:epidemiology*; D012214:Rheumatic Heart Disease / Q000453:epidemiology*