title: [The surgical risk in correction of valvular defects].
mesh_terms: D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000601:surgery; D012214:Rheumatic Heart Disease / Q000601:surgery*; D012306:Risk; D014261:Tricuspid Valve / Q000601:surgery
vernacular_title: Il rischio operatorio nella correzione dei difetti valvolari