[Postoperative prognosis of mitral stenosis - a comparison between open valvotomy and prosthetic valve replacement (Björk-Shiley valve)].
D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000601:surgery*; D011379:Prognosis