The use of the isotope 51Cr as a label for red cells.
D002857:Chromium; D002860:Chromium Radioisotopes; D004912:Erythrocytes; D006801:Humans; D007554:Isotopes
D002860:Chromium Radioisotopes; D007554:Isotopes; D002857:Chromium
CHROMIUM/radioactive; ERYTHROCYTES