title: Rett syndrome--observational study of 33 families.
mesh_terms: D000293:Adolescent; D000328:Adult; D001722:Birth Order; D002318:Cardiovascular Diseases / Q000235:genetics; D003241:Consanguinity; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D008297:Male; D008423:Maternal Age; D009069:Movement Disorders / Q000235:genetics*; D009369:Neoplasms / Q000235:genetics; D010331:Paternal Age; D012744:Sex Ratio; D013577:Syndrome