Has the child ever been treated in the past for this vision problem:Find:Pt:^Patient:Ord:PhenX
has the child ever been treated in the past for this vision problem:find:pt:^patient:ord:phenx
Has the child ever been treated in the past for this vision problem:Finding:To identify measures at a point in time:^Patient:Ordinal:PhenX
has the child ever been treated in the past for this vision problem:finding:to identify measures at a point in time:^patient:ordinal:phenx