The heart, its valves and their replacement.
D000818:Animals; D001021:Aortic Valve / Q000637:transplantation; D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D004697:Endocarditis, Bacterial / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008946:Mitral Valve Stenosis / Q000601:surgery; D012214:Rheumatic Heart Disease / Q000601:surgery; D014183:Transplantation, Heterologous; D014184:Transplantation, Homologous; D014264:Tricuspid Valve Stenosis / Q000601:surgery