Because of your headaches on how many Ds in the last 3Mo did you miss work or school:NRat:3Mo:^Patient:Qn:PhenX
because of your headaches on how many ds in the last 3mo did you miss work or school:nrat:3mo:^patient:qn:phenx
Because of your headaches on how many Ds in the last 3Mo did you miss work or school:Number=Count/Time:3 months:^Patient:Quantitative:PhenX
because of your headaches on how many ds in the last 3mo did you miss work or school:number=count/time:3 months:^patient:quantitative:phenx