Combat zone &or hazardous duty work dates:DateRange:Pt:^Patient:Qn
combat zone &or hazardous duty work dates:daterange:pt:^patient:qn
Combat zone &or hazardous duty work dates:DateRange:To identify measures at a point in time:^Patient:Quantitative
combat zone &or hazardous duty work dates:daterange:to identify measures at a point in time:^patient:quantitative