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Results with radioisotopic assay of serum B12 using serum binding agent
  1. D. M. Matthews,
  2. R. Gunasegaram,
  3. J. C. Linnell
  1. Department of Chemical Pathology of Westminster Hospital, London
  2. Vincent Square Laboratories of Westminster Hospital, London


    Results obtained with a radioisotope method for assay of serum vitamin B12 (Ekins and Sgherzi, 1965) are described. This method, which uses serum as binding agent, is simple, easy to set up, and suitable for routine diagnostic use. It gives results extremely similar to those obtained with standard microbiological assays.

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