Comparison.study:TmStp:Pt:Heart:Qn:EKG
comparison.study:tmstp:pt:heart:qn:ekg
Comparison.study:Time Stamp-Date and Time:To identify measures at a point in time:Heart:Quantitative:EKG
comparison.study:time stamp-date and time:to identify measures at a point in time:heart:quantitative:ekg