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A doctor checks the eyes of an elder during a free clinic in Daliang Town of Rongan County, south China's Guangxi Zhuang Autonomous Region, Dec. 27, 2017. Doctors from Suixi County of south China's Guangdong and Rongan County of South China's Guangxi formed a medical team to provide free clinic for the people in Daliang Town. (Xinhua/Zhang Ailin)