title: Vitamin B12 absorption determined with a double isotope technique employing incomplete stool collection. Reliability and validity in pernicious anemia.
mesh_terms: D000752:Anemia, Pernicious / Q000378:metabolism*; D002329:Carmine; D002860:Chromium Radioisotopes; D003037:Cobalt Radioisotopes; D005243:Feces / Q000032:analysis*; D006801:Humans; D012588:Scintillation Counting; D014805:Vitamin B 12 / Q000378:metabolism*
chemical_list: D002860:Chromium Radioisotopes; D003037:Cobalt Radioisotopes; D002329:Carmine; D014805:Vitamin B 12