Surgery of the mitral and aortic valves.
D000293:Adolescent; D000328:Adult; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000601:surgery*; D002312:Cardiomyopathy, Hypertrophic / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000601:surgery*