Photo taken on June 9, 2015 shows the conjoined twins to be separated in east China's Shanghai Municipality. The conjoined twins, who were born on March 17 in east China's Jiangxi Province, were successfully separated Tuesday at the Children's Hospital of Fudan University here in Shanghai. 3D printing technology was used in making models for virtual operation to make sure the separation will succeed. (Xinhua/Liu Ying)