title: [Echocardiographic studies of heart valve diseases--with special reference to mitral valve diseases].
mesh_terms: D000328:Adult; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D008946:Mitral Valve Stenosis / Q000175:diagnosis*