Post-ventricular atrial refractory period setting:Time:Pt:Pacemaker:Qn
post-ventricular atrial refractory period setting:time:pt:pacemaker:qn
Post-ventricular atrial refractory period setting:Time:To identify measures at a point in time:Pacemaker:Quantitative
post-ventricular atrial refractory period setting:time:to identify measures at a point in time:pacemaker:quantitative