Gu Quanping and wife Lv Aiping are accompanied by their son and grandson before boarding a plane back to China in Melbourne, Australia, Jan. 27, 2016. Gu, who is in his seventies, was diagnosed with advanced gastric cancer in 2013 and later recovered after surgery. Gu and Lv visited Australia last November at the invitation of their son Gu Gu, a photographer, to mark the couple's 50th wedding anniversary. (Photo/Xinhua)
