Frequency of bone-strengthening physical activity:NRat:RptPeriod:^Patient:Qn
frequency of bone-strengthening physical activity:nrat:rptperiod:^patient:qn
Frequency of bone-strengthening physical activity:Number=Count/Time:Reporting period:^Patient:Quantitative
frequency of bone-strengthening physical activity:number=count/time:reporting period:^patient:quantitative