title: Congenital methemoglobinemia and mental retardation.
mesh_terms: D003579:Cytochrome Reductases / Q000172:deficiency; D042966:Cytochrome-B(5) Reductase; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D008706:Methemoglobin / Q000235:genetics*
chemical_list: D008706:Methemoglobin; D003579:Cytochrome Reductases; D042966:Cytochrome-B(5) Reductase