aortic stenosis,regurgitation

医学 主动脉瓣病变 心外科 主动脉 主动脉瓣狭窄 aortic stenosis as
low-flow severe aortic stenosis
aortic stenosis in the elderly: understanding the
aortic stenosis and small aortic annulus
aortic stenosis suspected to be severe despite low gradients