Letter: Apert syndrome does not equal mental retardation.
D000168:Acrocephalosyndactylia / Q000150:complications*; D002675:Child, Preschool; D003398:Craniosynostoses / Q000150:complications*; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000150:complications*; D013577:Syndrome