Joanna G. Williams

Prevalence of autism-spectrum conditions: UK school-based population study

P. Bolton, S. Baron-Cohen, C. Brayne, 2009, British Journal of Psychiatry.

The Childhood Autism Spectrum Test (CAST): Sex Differences

P. Bolton, S. Baron-Cohen, C. Brayne, 2008, Journal of autism and developmental disorders.

Performance and normative values of a concise neuropsychological test (CAMCOG) in an elderly population sample

F. Matthews, F. Huppert, Joanna G. Williams, 2003, International journal of geriatric psychiatry.

Systematic review of prevalence studies of autism spectrum disorders

J P T Higgins, C. Brayne, J. Higgins, 2005, Archives of Disease in Childhood.