Jiang Weimao, 60, and his wife Zhang Yinxiu, 53, show a picture of their dead son as a baby and his "honourable single child certification" at their house in in Zhangjiakou, China, November 21, 2015. Jiang and Zhang's son, Jiang Tingyi, was born in 1984 and died of diabetes in 2010. They recall the propaganda slogan in the 1980s: "Only having one child is good, the state will take care of the elderly." They both worked in the same glass factory and didn't think of having a second baby for fear of losing their job. Zhang had an abortion after falling pregnant a second time. Now retired, they live with Zhang's parents on the outskirts of Zhangjiakou city. The son's struggles with diabetes left them in heavy debt. Now they live on a pension but it's not enough to cover the family's medical bills. Zhang said the change of the one-child policy has nothing to do with them and has only deepened their sorrow caused by the loss of their only child. REUTERS/Kim Kyung-Hoon PICTURE 8 OF 18 FOR WIDER IMAGE STORY "CHINA: WHEN AN ONLY CHILD DIES" SEARCH "KIM ONE CHILD" FOR ALL IMAGES