Rubella was serologically confirmed at time of illness:Find:Pt:^Mother:Ord
rubella was serologically confirmed at time of illness:find:pt:^mother:ord
Rubella was serologically confirmed at time of illness:Finding:To identify measures at a point in time:^Mother:Ordinal
rubella was serologically confirmed at time of illness:finding:to identify measures at a point in time:^mother:ordinal