echocardiography: effective regurgitant orifice of prosthetic mitral valve at end of expiration
echocardiography: effective regurgitant orifice of prosthetic mitral valve at end of expiration
echocardiography: effective regurgitant orifice of prosthetic mitral valve at end of expiration (procedure)
echocardiography: effective regurgitant orifice of prosthetic mitral valve at end of expiration (procedure)