Polysomnography detects sleep apnea, revealing severe airway obstruction VnExpress Mr. Thang, 65, experienced snoring, choking, and fainting; polysomnography revealed severe airway obstruction, posing a risk of sudden death.
Are traffic jams and air pollution causes of persistent coughs? VnExpress My house is located on a large road with thick dust and frequent traffic jams; is this why many people living here suffer from persistent coughs? (Tran Anh, 39, Thanh Hoa)
