title: Comparison of two methods for radioassay of vitamin B12 in serum.
mesh_terms: D000740:Anemia / Q000097:blood; D001667:Binding, Competitive; D001798:Blood Proteins; D002482:Cellulose; D003037:Cobalt Radioisotopes; D003911:Dextrans; D005069:Evaluation Studies as Topic; D006801:Humans; D007437:Intrinsic Factor; D007553:Isotope Labeling; D008722:Methods; D011485:Protein Binding; D011854:Radiochemistry; D012044:Regression Analysis; D014805:Vitamin B 12 / Q000097:blood*; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000175:diagnosis
chemical_list: D001798:Blood Proteins; D003037:Cobalt Radioisotopes; D003911:Dextrans; D002482:Cellulose; D007437:Intrinsic Factor; D014805:Vitamin B 12