Adamson (pp 159–165) Figure 2.
Hemoglobin concentrations in relation to serum immunoreactive erythropoietin concentrations in 74 nonhypoxemic anemic patients with cancer (black squares) and 24 patients with iron deficiency anemia (red squares).
Reproduced with permission from Miller CB, Jones RJ, Piantodosi S et al. N Engl J Med.2