KAROLINSKA INSTITUTET IMAGE: SVEN-ERIK DAHLÉN, PROFESSOR AT THE INSTITUTE OF ENVIRONMENTAL MEDICINE, KAROLINSKA INSTITUTET. CREDIT: MATTIAS AHLM In a new study, researchers at Karolinska Institutet in Sweden have used a urine test to identify and verify a patient’s type of asthma. The study, which has been published in the American Journal of Respiratory and Critical Care Medicine, lays...