The<unk>  is a heart<unk>  typically associated with pulmonary regurgitation.  It is a high pitched early diastolic<unk>  heard best at the left sternal edge in the second intercostal space during  inspiration .
Graham-Steell murmur
Austin Flint murmur
Muffled heart sounds
Still's murmur
Dock's murmur
Binaural beats
Pulsus alternans
Continuous murmur