title: Differences in vitamin B12 results as measured with boil and no-boil kits.
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D011933:Reagent Kits, Diagnostic; D013696:Temperature; D014805:Vitamin B 12 / Q000097:blood*
chemical_list: D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12