Comparison of methods to diagnose deficiency or malabsorption of vitamin B12.
D000752:Anemia, Pernicious / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D001800:Blood Specimen Collection; D003037:Cobalt Radioisotopes; D003951:Diagnostic Errors; D005069:Evaluation Studies as Topic; D006098:Granulocytes; D006801:Humans; D007437:Intrinsic Factor; D012546:Schilling Test; D014805:Vitamin B 12 / Q000097:blood / Q000652:urine; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D014915:Whole-Body Counting
D003037:Cobalt Radioisotopes; D007437:Intrinsic Factor; D014805:Vitamin B 12