On what date did that pregnancy end:Date:Pt:^Patient:Qn:PhenX
on what date did that pregnancy end:date:pt:^patient:qn:phenx
On what date did that pregnancy end:Date:To identify measures at a point in time:^Patient:Quantitative:PhenX
on what date did that pregnancy end:date:to identify measures at a point in time:^patient:quantitative:phenx