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  • Title: An assessment of serum 57Co cyanocobalamin as an index of vitamin B12 absorption.
    Author: Donaldson D, Blight BJ, Lascelles PT.
    Journal: J Clin Pathol; 1970 Oct; 23(7):558-62. PubMed ID: 5483382.
    Abstract:
    A technique has been developed for accurately assaying serum and urine (57)Co cyanocobalamin during the conventional Schilling test. Serum and urine radioactivity in a large number of patients has been correlated and the precise normal limits have been determined by statistical analysis. The implications of this for investigating conditions other than pernicious anaemia and the malabsorption syndromes are stressed.
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