Ottó, S Laboratory study on occult gastrointestinal bleedings: differential diagnostic method for the parallel study of intact and fragmented hemoglobin. [electronic resource] - Journal of clinical laboratory analysis 1995 - 47-51 p. digital Publication Type: Journal Article ISSN: 0887-8013 Standard No.: 10.1002/jcla.1860090109 doi Subjects--Topical Terms: BiomarkersGastrointestinal Hemorrhage--diagnosisHemoglobins--immunologyHumansImmunoassayOccult BloodPeptide Fragments--immunologyPeroxidases