Compensated hemolytic anemia.

To the Editor: which in the absence of anemia increases th rate of red blood cell In a recent excellent review on iron balance in humans,' Dr ClemProduction.'" ent Finch briefly discussed compensated hemolytic anemia in pa. Dr Finch states in his review without a specific reference that the tients with hereditary spherocytosis. For years I have been interested erythropoietin titer in this condition is not increased. Because I have in this phenomenon and have attempted to identify the driving force, measured erythropoietin titers in a number of patients with compen-