Phenylalanine:PrThr:Pt:Bld:SemiQn:Guthrie test
phenylalanine:prthr:pt:bld:semiqn:guthrie test
Phenylalanine:Presence or Threshold:To identify measures at a point in time:Whole blood:Semiquantitative:Guthrie test
phenylalanine:presence or threshold:to identify measures at a point in time:whole blood:semiquantitative:guthrie test