
Cui Zidong, a two and half years old child with leukemia, hopes to have a set of toy tanks as his gift of the International Children's Day, at Tianjin No. 2 Children's Hospital in Tianjin, north China, May 31, 2017. (Xinhua/Bai Yu)

Cui Zidong, a two and half years old child with leukemia, hopes to have a set of toy tanks as his gift of the International Children's Day, at Tianjin No. 2 Children's Hospital in Tianjin, north China, May 31, 2017. (Xinhua/Bai Yu)