QRS complex:NRat:Pt:Heart.ventricles:Qn:EKG
qrs complex:nrat:pt:heart.ventricles:qn:ekg
QRS complex:Number=Count/Time:To identify measures at a point in time:Heart.ventricles:Quantitative:EKG
qrs complex:number=count/time:to identify measures at a point in time:heart.ventricles:quantitative:ekg