N-acetyl-L-aspartate:PrThr:Pt:Urine:Ord
n-acetyl-l-aspartate:prthr:pt:urine:ord
N-acetyl-L-aspartate:Presence or Threshold:To identify measures at a point in time:Urine:Ordinal
n-acetyl-l-aspartate:presence or threshold:to identify measures at a point in time:urine:ordinal