Nicotine+Cotinine:PrThr:Pt:Urine:Ord
nicotine+cotinine:prthr:pt:urine:ord
Nicotine+Cotinine:Presence or Threshold:To identify measures at a point in time:Urine:Ordinal
nicotine+cotinine:presence or threshold:to identify measures at a point in time:urine:ordinal