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An exhibitor demonstrates a magnetically controlled capsule gastroscopy system during an "Internet plus healthcare" exhibition of the ongoing fourth China-Arab States Expo in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Sept. 6, 2019. Held as part of the fourth China-Arab States Expo, the event showcases the latest technological developments by Chinese and international exhibitors in the smart healthcare industry. (Xinhua/Feng Kaihua)
