Quantitation of gastrointestinal bleeding by use of a large volume scintillation detector.
D000748:Anemia, Macrocytic / Q000175:diagnosis; D002859:Chromium Isotopes; D005243:Feces / Q000032:analysis*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D009780:Occult Blood; D011874:Radiometry
D002859:Chromium Isotopes