Abstract Objective: To identify prenatal. perinatal and postnatal risk factors in children with autism spectrum disorder (ASD) by comparing them to their siblings without autistic disorders. Method: The present study is cross sectional and comparative. It was conducted over a period of three months (July-September 2014). https://www.ealisboa.com/flash-sale-Santa-Cruz-Surfboard-Recycled-Cotton-great-price/