Hemoglobin.gastrointestinal^2nd specimen:PrThr:Pt:Gast fld:Ord
hemoglobin.gastrointestinal^2nd specimen:prthr:pt:gast fld:ord
Hemoglobin.gastrointestinal^2nd specimen:Presence or Threshold:To identify measures at a point in time:Gastric fluid/contents:Ordinal
hemoglobin.gastrointestinal^2nd specimen:presence or threshold:to identify measures at a point in time:gastric fluid/contents:ordinal