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Zhang Lei (R), a doctor of nephrology department of the Second Xiangya Hospital of Central South University, hugs his wife before setting out for Hubei Province in Changsha, central China's Hunan Province, Feb. 4, 2020. A medical team comprised of 42 members from the Second Xiangya Hospital of Central South University set off on Tuesday to aid the coronavirus control efforts in Hubei. (Xinhua)
