Volunteers raise public awareness about caring for autistic children by dancing and reciting poems in Shenyang city, Northeast China's Liaoning province, on March 31, 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]