It is obvious to any student of anemia that a beginning has been made, but our knowledge of pigment metabolism and hemoglobin regeneration is inadequate in every respect. This is a stimulating outlook for the numerous investigators in this field and we may confidently expect much progress in the near future.

Nobel Lectures, Physiology or Medicine 1922-1941 - Nobel lecture for award received in 1934, Hemoglobin Regeneration as Influenced by Diet and Other Factors (p. 353) - Elsevier Publishing Company. Amsterdam, Netherlands. 1965