RT Journal Article SR Electronic T1 “International ERS/ATS guidelines on definition, evaluation and treatment of severe asthma.” Kian Fan Chung, Sally E. Wenzel, Jan L. Brozek, et al. Eur Respir J 2014; 43: 343–373. JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1362020 DO 10.1183/13993003.62020-2013 VO 59 IS 6 YR 2022 UL https://publications.ersnet.org//content/59/6/1362020.abstract AB