Parents try to catch the attention of children who suffer from autism, at a special education school in Qingdao, East China's Shandong province on March 27, 2013. Autism is a neural development disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. Early behavioral or cognitive intervention can help autistic children take care of themselves, and gain social and communication skills. April 2 is World Autism Awareness Day.[Photo/CFP]