End-systolic volume:Vol:Pt:Heart.ventricle.left:Qn:US.2D.mod.biplane
end-systolic volume:vol:pt:heart.ventricle.left:qn:us.2d.mod.biplane
Left ventricular End-systolic volume by US 2D modified biplane
left ventricular end-systolic volume by us 2d modified biplane