Cannabinoids:PrThr:Pt:Ser/Plas:Ord:Screen
cannabinoids:prthr:pt:ser/plas:ord:screen
Cannabinoids:Presence or Threshold:To identify measures at a point in time:Serum/Plasma:Ordinal:Screen
cannabinoids:presence or threshold:to identify measures at a point in time:serum/plasma:ordinal:screen