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  • Title: Comparison of two radioisotope dilution assay kits for measuring vitamin B12 in gruel.
    Author: Osterdahl BG, Johansson E.
    Journal: Int J Vitam Nutr Res; 1988; 58(3):303-5. PubMed ID: 3058620.
    Abstract:
    The results obtained using two commercially available radioisotope dilution (RID) assay kits for determining vitamin B12 were compared. Comparison of the results obtained with the two RID methods gave a correlation coefficient of 0.9390 for gruel samples. The results obtained with one of the kits were slightly lower, probably due to a difference in the RID assay techniques.
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