Phonocardiographic changes in mitral stenosis before and after valvulotomy:  a correlation with mitral valve size.
D006348:Cardiac Surgical Procedures; D006337:Heart Murmurs; D006347:Heart Sounds; D006801:Humans; D008943:Mitral Valve; D008946:Mitral Valve Stenosis / Q000628:therapy*
CARDIAC MURMURS AND SOUNDS; COMMISSUROTOMY