A Chinese ride-sharing driver has dedicated himself to his city’s emergency medical services, offering first aid to nearly 400 cases in the past year.Liu Xianfu, 54, is a driver and first aid volunteer in Foshan city, in southern China’s Guangdong province.The migrant from Hunan province in the south-central region first worked as a truck driver, then a taxi driver. He saw many accidents on the road and remembered the frustration of not being able to help.He joined a volunteer team near his...