echocardiography: diastolic 1/3 filling fraction period of tricuspid valve with stress
echocardiography: diastolic 1/3 filling fraction period of tricuspid valve with stress
echocardiography: diastolic 1/3 filling fraction period of tricuspid valve with stress (procedure)
echocardiography: diastolic 1/3 filling fraction period of tricuspid valve with stress (procedure)