title: Cobalamin-responsive disorders and unreliability of cobalamin, methylmalonic acid, and homocysteine testing.
authors: A Majid
authors: AM
authors: Shojania
mesh_terms: D003951:Diagnostic Errors; D006710:Homocysteine / Q000032:analysis; D006801:Humans; D008764:Methylmalonic Acid / Q000032:analysis; D014805:Vitamin B 12 / Q000032:analysis; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis*
chemical_list: D006710:Homocysteine; D008764:Methylmalonic Acid; D014805:Vitamin B 12