Apical 4 chamber.systole.min:Vol:Pt:Heart.ventricle.left:Qn:US.2D.mod
apical 4 chamber.systole.min:vol:pt:heart.ventricle.left:qn:us.2d.mod
Apical 4 chamber.systole.min:Vol:Pt:Heart.ventricle.left:Qn:US.2D.mod
apical 4 chamber.systole.min:vol:pt:heart.ventricle.left:qn:us.2d.mod