title: Letter: Congenital folate deficiency.
mesh_terms: D000293:Adolescent; D000749:Anemia, Megaloblastic / Q000209:etiology; D003241:Consanguinity; D005260:Female; D005494:Folic Acid Deficiency / Q000150:complications / Q000151:congenital*; D006801:Humans; D010523:Peripheral Nervous System Diseases / Q000209:etiology