A girl signs her name on a banner appealing for care for autistic children at a charity event marking the upcoming World Autism Awareness Day in Tianjin, north China, March 31, 2013. The acitivity aimed to call for public care for autistic children by selling autistic children's paintings and introducing general knowledge of autism. (Xinhua/Zhang Chaoqun)

A girl donates for autistic children living in poverty at a charity event marking the upcoming World Autism Awareness Day in Tianjin, north China, March 31, 2013. The acitivity aimed to call for public care for autistic children by selling autistic children's paintings and introducing general knowledge of autism. (Xinhua/Zhang Chaoqun)