Mental retardation and head growth abnormalities.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006257:Head / Q000033:anatomy & histology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000150:complications*; D007360:Intelligence; D008831:Microcephaly / Q000150:complications*