What Mo and Y did child first begin wearing glasses or contact lenses:Date:Pt:^Patient:Qn:PhenX
what mo and y did child first begin wearing glasses or contact lenses:date:pt:^patient:qn:phenx
What Mo and Y did child first begin wearing glasses or contact lenses:Date:To identify measures at a point in time:^Patient:Quantitative:PhenX
what mo and y did child first begin wearing glasses or contact lenses:date:to identify measures at a point in time:^patient:quantitative:phenx