The life span of the red cell.
D002860:Chromium Radioisotopes; D004905:Erythrocyte Aging; D004912:Erythrocytes / Q000502:physiology*; D006454:Hemoglobins / Q000378:metabolism; D006461:Hemolysis; D006801:Humans; D007553:Isotope Labeling / Q000379:methods
D002860:Chromium Radioisotopes; D006454:Hemoglobins