Abstract

David H. Clement, Charles A. Nichol and Arnold D. Welch: A case of juvenile pernicious anemia: Study of the effects of folic acid and vitamin B12. Blood 17:618-631 (May), 1961.

On page 625, the footnote to figure 3 should begin "Indicates …"

On page 628, the first sentence which begins in the text under table 1 should read: "Furthermore, recent evidence obtained from the study of the formation from homocysteine of its methylated derivative, methionine, suggests that vitamin B12 may be involved in the formation or utilization of a derivative of tetrahydrofolic acid.20,21"

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