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