Durkin, PhD, DrPH, M. S. Prevalence of Cerebral Palsy, Co-Occurring Autism Spectrum Disorders, and Motor Functioning – Autism and Developmental Disabilities Monitoring Network, USA, 2008.
Christensen D, Van Naarden Braun K, Doernberg NS, Maenner MJ, Arneson CL, Durkin MS, Benedict RE, Kirby RS, Wingate MS, Fitzgerald R, Yeargin-Allsopp M. (2014) Prevalence of cerebral palsy, co-occurring autism spectrum disorders, and motor functioning – Autism and Developmental Disabilities Monitoring Network, USA, 2008. Developmental Medicine & Child Neurology. 56(1):59-65.