title: [Assay of serum vitamin B12 levels by radioisotope method--comparison with microbiological method-- (author's transl)].
mesh_terms: D000328:Adult; D000368:Aged; D001681:Biological Assay; D001793:Blood Preservation; D005069:Evaluation Studies as Topic; D005260:Female; D006402:Hematologic Diseases / Q000097:blood; D006801:Humans; D007778:Lactobacillus; D008297:Male; D008722:Methods; D008875:Middle Aged; D011868:Radioisotopes; D012016:Reference Values; D014805:Vitamin B 12 / Q000097:blood*; D014806:Vitamin B 12 Deficiency / Q000097:blood
chemical_list: D011868:Radioisotopes; D014805:Vitamin B 12