Phenylalanine+Tyrosine:PrThr:Pt:Urine:Ord
phenylalanine+tyrosine:prthr:pt:urine:ord
Phenylalanine+Tyrosine:Presence or Threshold:To identify measures at a point in time:Urine:Ordinal
phenylalanine+tyrosine:presence or threshold:to identify measures at a point in time:urine:ordinal