Opiates:PrThr:Pt:Gast fld:Ord:Confirm
opiates:prthr:pt:gast fld:ord:confirm
Opiates:Presence or Threshold:To identify measures at a point in time:Gastric fluid/contents:Ordinal:Confirm
opiates:presence or threshold:to identify measures at a point in time:gastric fluid/contents:ordinal:confirm