A-wave duration &#x7C; Circulatory system XXX &#x7C; Cardiac ultrasound
a-wave duration &#x7c; circulatory system xxx &#x7c; cardiac ultrasound
A-wave duration &#x7C; Circulatory system XXX &#x7C; Cardiac ultrasound
a-wave duration &#x7c; circulatory system xxx &#x7c; cardiac ultrasound