Think about the period of your life when you injected drugs the most often. How often did you inject then:NRat:Pt:^Patient:Qn:PhenX
think about the period of your life when you injected drugs the most often. how often did you inject then:nrat:pt:^patient:qn:phenx
Think about the period of your life when you injected drugs the most often. How often did you inject then:Number=Count/Time:To identify measures at a point in time:^Patient:Quantitative:PhenX
think about the period of your life when you injected drugs the most often. how often did you inject then:number=count/time:to identify measures at a point in time:^patient:quantitative:phenx