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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Raven J. L., Robson M. B., Walker P. L., Barkhan P. Improved method for measuring vitamin B12 in serum using intrinsic factor, 57CoB12, and coated charcoal. J Clin Pathol. 1969 Mar;22(2):205–211. doi: 10.1136/jcp.22.2.205. [DOI] [PMC free article] [PubMed] [Google Scholar]
