Proposed serum standard for human serum vitamin B12 assay. International Committee for Standardization in Haematology (ICSH).
D000752:Anemia, Pernicious / Q000097:blood; D001681:Biological Assay; D006801:Humans; D011865:Radioisotope Dilution Technique; D012015:Reference Standards; D014805:Vitamin B 12 / Q000097:blood*
D014805:Vitamin B 12