How often did you have a burning feeling behind your breastbone - heartburn:NRat:Pt:^Patient:Ord:PhenX
how often did you have a burning feeling behind your breastbone - heartburn:nrat:pt:^patient:ord:phenx
How often did you have a burning feeling behind your breastbone - heartburn:Number=Count/Time:To identify measures at a point in time:^Patient:Ordinal:PhenX
how often did you have a burning feeling behind your breastbone - heartburn:number=count/time:to identify measures at a point in time:^patient:ordinal:phenx