Fig. 4.
Inverse relation between reticulocyte count at least 200 × 109/L and transfusion requirements in infants with HS.
Dotted line indicates reticulocyte count at least 200 × 109/L; solid line, transfusion requirements. Although sequential reticulocyte counts were available for 18 infants with HS, only 15 of these patients required transfusions during the first year of life.
