Doppler echocardiography: prosthetic aortic valve area by velocity at end of expiration
doppler echocardiography: prosthetic aortic valve area by velocity at end of expiration
Doppler echocardiography: prosthetic aortic valve area by velocity at end of expiration (procedure)
doppler echocardiography: prosthetic aortic valve area by velocity at end of expiration (procedure)