Number of chromosome 21 present:Num:Pt:Amnio fld:Qn:Probe.amp.tar
number of chromosome 21 present:num:pt:amnio fld:qn:probe.amp.tar
Number of chromosome 21 present:Number:To identify measures at a point in time:Amniotic fluid:Quantitative:Probe.amp.tar
number of chromosome 21 present:number:to identify measures at a point in time:amniotic fluid:quantitative:probe.amp.tar