title: Letter: Normal ranges for serum folate and vitamin B12.
mesh_terms: D000752:Anemia, Pernicious / Q000097:blood; D005492:Folic Acid / Q000097:blood*; D005494:Folic Acid Deficiency / Q000097:blood; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood*; D014806:Vitamin B 12 Deficiency / Q000097:blood
chemical_list: D005492:Folic Acid; D014805:Vitamin B 12