The heart sound murmur is heard during

The heart murmur is due to

The heart murmur is due to

Abnormal heart sound (murmur) is a defect of the

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when