title: Failure of diagnosis of pernicious anaemia by radioassay of B12.
mesh_terms: D000752:Anemia, Pernicious / Q000097:blood / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D011863:Radioimmunoassay; D014805:Vitamin B 12 / Q000097:blood*; D014806:Vitamin B 12 Deficiency / Q000097:blood*
chemical_list: D014805:Vitamin B 12