1. C Lord, Elsabbagh M, Baird G, Veenstra-Vanderweele J, Autism spectrum disorder.Lancet 2018;392(10146):508-20
2. Autism spectrum disorder
3. World Health Organization. Autism spectrum disorders. No. WHO- EM/MNH/215/E. World Health Organization. Regional Office for the Eastern Mediterranean..
4. Biological Timing and Neurodevelopmental Disorders: A Role for Circadian Dysfunction in Autism Spectrum Disorders
5. L Mercer, Creighton S, Holden JJA, Lewis MES, Parental perspectives on the causes of an autism spectrum disorder in their children.J Genet Couns 2006;15(5):41-50