International ERS/ATS guidelines on definition, evaluation and treatment of severe asthma

- Chung, Kian Fan; Wenzel, Sally E.; Boulet, Louis-Philippe; Brightling, Christopher; Chanez, Pascal; Dahlen, Sven-Erik; Djukanovic, Ratko; Frey, Urs; Gaga, Mina; Gibson, Peter; Hamid, Qutayba; Jajour, Nizar N.; Brozek, Jan L.; Mauad, Thais; Sorkness, Ronald L.; Teague, W. Gerald; Bush, Andrew; Castro, Mario; Sterk, Peter J.; Adcock, Ian M.; Bateman, Eric D.; Bel, Elisabeth H.; Bleecker, Eugene R.