Doses of vaccine given^pre symptom onset:Num:Pt:^Patient:Qn
doses of vaccine given^pre symptom onset:num:pt:^patient:qn
Doses of vaccine given^pre symptom onset:Number:To identify measures at a point in time:^Patient:Quantitative
doses of vaccine given^pre symptom onset:number:to identify measures at a point in time:^patient:quantitative