Practical application of a simplified vitamin B12 radioassay.
D000752:Anemia, Pernicious / Q000097:blood; D001667:Binding, Competitive; D003037:Cobalt Radioisotopes; D005056:Euglena gracilis; D005743:Gastrectomy; D006801:Humans; D008722:Methods; D014805:Vitamin B 12 / Q000097:blood*
D003037:Cobalt Radioisotopes; D014805:Vitamin B 12