A South Korean high school student died in an ambulance after eight hospitals refused to treat him over the space of an hour, in a case that has reignited concerns over a growing shortage of doctors and specialists in the country.The 18-year-old was found convulsing near a high school by a teacher at about 6.20am on October 20, The Chosun Daily reported, quoting the Busan Fire and Disaster Headquarters on Tuesday. The teacher called for an ambulance, which arrived about 15 minutes later.The...