Comparison of serum vitamin B12 (cobalamin) determination by two isotope-dilution methods and by Euglena assay.
D001681:Biological Assay; D003037:Cobalt Radioisotopes; D005056:Euglena gracilis / Q000187:drug effects*; D006801:Humans; D007553:Isotope Labeling / Q000379:methods; D012016:Reference Values; D014805:Vitamin B 12 / Q000097:blood* / Q000494:pharmacology
D003037:Cobalt Radioisotopes; D014805:Vitamin B 12