Comparison of serum vitamin B12 determination by two isotope dilution methods and by Euglena assay, with special reference to low values.
D001681:Biological Assay; D001855:Bone Marrow Diseases / Q000378:metabolism; D002606:Charcoal; D003037:Cobalt Radioisotopes; D005056:Euglena gracilis; D006801:Humans; D008534:Megaloblasts / Q000648:ultrastructure; D008722:Methods; D011485:Protein Binding; D011865:Radioisotope Dilution Technique; D011869:Radioligand Assay; D014805:Vitamin B 12 / Q000097:blood*
D003037:Cobalt Radioisotopes; D002606:Charcoal; D014805:Vitamin B 12