title: Rett syndrome: what do we know about it?
mesh_terms: D001321:Autistic Disorder / Q000150:complications*; D002675:Child, Preschool; D005149:Facial Expression; D005260:Female; D006801:Humans; D007223:Infant; D009468:Neuromuscular Diseases / Q000150:complications*; D013239:Stereotyped Behavior; D013577:Syndrome