Assessment of acute blood-loss by determination of change in red-cell volume.
D002859:Chromium Isotopes; D005243:Feces / Q000032:analysis; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006400:Hematocrit; D006801:Humans; D008722:Methods; D013997:Time Factors
D002859:Chromium Isotopes