title: Head circumference needs to be measured.
authors.affiliation: Neurodevelopmental Paediatrics, City of Coventry Health Centre, Coventry, UK.
authors.forename: Charles
authors.initials: C
authors.lastname: Essex
mesh_terms: D005075:Biological Evolution; D001921:Brain; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology*; D008831:Microcephaly / Q000235:genetics*