Doctors caution against using coal stoves in enclosed spaces for heat stockbot 0 25 2022.02.23 18:05 http://vietnamnews.vn/society/1157482/doctors-caution-against-using-co… + 8 https://vietnamnews.vn/rss/society.rss + 3 Doctors have again warned against the use of coal fires in enclosed rooms due to the risk of accidental carbon monoxide poisoning, as the northern region plunged into a deep chill in recent days.