A visitor has her blood pressure measured by a smart sphygmomanometer 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. Photo: Xinhua

Visitors learn about a medical care system based on 5G and cloud technologies 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. Photo: Xinhua

Visitors get information on smart medical equipment 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. Photo: Xinhua

People visit 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. Photo: Xinhua

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. Photo: Xinhua

Photo taken on Sept. 6, 2019 shows a color Doppler ultrasound machine on display during an "Internet plus healthcare" exhibition of the ongoing fourth China-Arab States Expo in Yinchuan, northwest China's Ningxia Hui Autonomous Region. 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. Photo: Xinhua