Two-year-old Gao Qianbo looks after his mother, Zhang Rongxiang, at their home in Shuyang county, East China's Jiangsu province, Sept 23 2013. Zhang fell into a coma after a car crash in December 2010, while she was pregnant with her son. She woke up after 30 months, 22 months after her son's birth. [Photo/CFP]
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