A couple show the handheld devices that can make emergency calls to a hospital and can contact family members if they require assistance, Hefei, Anhui province, Dec 29, 2015. (Photo/Xinhua)
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A couple show the handheld devices that can make emergency calls to a hospital and can contact family members if they require assistance, Hefei, Anhui province, Dec 29, 2015. (Photo/Xinhua)
