A medical staff member examines the teeth of students for free in Fuhe primary school in Handan, North China's Hebei Province, Sept. 18, 2017. (Photo/Asianewsphoto)
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A medical staff member examines the teeth of students for free in Fuhe primary school in Handan, North China's Hebei Province, Sept. 18, 2017. (Photo/Asianewsphoto)