S' wave duration.lead AVL:Time:Pt:Heart:Qn:EKG
s' wave duration.lead avl:time:pt:heart:qn:ekg
S' wave duration.lead AVL:Time:To identify measures at a point in time:Heart:Quantitative:EKG
s' wave duration.lead avl:time:to identify measures at a point in time:heart:quantitative:ekg