Hemoglobin.gastrointestinal.lower^1st specimen:PrThr:Pt:Stool:Ord:IA
hemoglobin.gastrointestinal.lower^1st specimen:prthr:pt:stool:ord:ia
Hemoglobin.gastrointestinal.lower [Presence] in Stool by Immunoassay --1st specimen
hemoglobin.gastrointestinal.lower [presence] in stool by immunoassay --1st specimen