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