The need for a sufficient number of low level sera in comparisons of different serum vitamin B12 assays.

Abstract

Eight radiochemical methods for the assay of vitamin B12 in serum were compared with the microbiological assay with Lactobacillus leichmannii ATCC 7830 using 198 individual sera of patients. There was a good agreement between the results of most samples with some kits and the microbiological assay. However, especially in the sera of vitamin B12-deficient… (More)

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@article{Gijzen1983TheNF, title={The need for a sufficient number of low level sera in comparisons of different serum vitamin B12 assays.}, author={A. H. J. Gijzen and H. W. de Kock and P N Meulendijk and Nathan Schmidt and W. Schopman and J F Tertoolen and Charlotte Voogd}, journal={Clinica chimica acta; international journal of clinical chemistry}, year={1983}, volume={127 2}, pages={185-95} }