title: Rett syndrome--a nosological entity.
mesh_terms: D001284:Atrophy; D002540:Cerebral Cortex / Q000473:pathology; D002648:Child; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis*; D019965:Neurocognitive Disorders / Q000175:diagnosis*; D013239:Stereotyped Behavior; D013577:Syndrome